A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.
Computer-based representation of physical systems and phenomena such as chemical processes.
Methods developed to aid in the interpretation of ultrasound, radiographic images, etc., for diagnosis of disease.
The attitude and behavior associated with an individual using the computer.
Improvement in the quality of an x-ray image by use of an intensifying screen, tube, or filter and by optimum exposure techniques. Digital processing methods are often employed.
Various units or machines that operate in combination or in conjunction with a computer but are not physically part of it. Peripheral devices typically display computer data, store data from the computer and return the data to the computer on demand, prepare data for human use, or acquire data from a source and convert it to a form usable by a computer. (Computer Dictionary, 4th ed.)
Familiarity and comfort in using computers efficiently.
A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.
Systems composed of a computer or computers, peripheral equipment, such as disks, printers, and terminals, and telecommunications capabilities.
Computer systems or networks designed to provide radiographic interpretive information.
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
Sequential operating programs and data which instruct the functioning of a digital computer.
A type of MICROCOMPUTER, sometimes called a personal digital assistant, that is very small and portable and fitting in a hand. They are convenient to use in clinical and other field situations for quick data management. They usually require docking with MICROCOMPUTERS for updates.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
Process of teaching a person to interact and communicate with a computer.
Input/output devices designed to receive data in an environment associated with the job to be performed, and capable of transmitting entries to, and obtaining output from, the system of which it is a part. (Computer Dictionary, 4th ed.)
Application of computer programs designed to assist the physician in solving a diagnostic problem.
Computers in which quantities are represented by physical variables; problem parameters are translated into equivalent mechanical or electrical circuits as an analog for the physical phenomenon being investigated. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
The process of pictorial communication, between human and computers, in which the computer input and output have the form of charts, drawings, or other appropriate pictorial representation.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Combination or superimposition of two images for demonstrating differences between them (e.g., radiograph with contrast vs. one without, radionuclide images using different radionuclides, radiograph vs. radionuclide image) and in the preparation of audiovisual materials (e.g., offsetting identical images, coloring of vessels in angiograms).
A system containing any combination of computers, computer terminals, printers, audio or visual display devices, or telephones interconnected by telecommunications equipment or cables: used to transmit or receive information. (Random House Unabridged Dictionary, 2d ed)
In INFORMATION RETRIEVAL, machine-sensing or identification of visible patterns (shapes, forms, and configurations). (Harrod's Librarians' Glossary, 7th ed)
A self-learning technique, usually online, involving interaction of the student with programmed instructional materials.
Small computers that lack the speed, memory capacity, and instructional capability of the full-size computer but usually retain its programmable flexibility. They are larger, faster, and more flexible, powerful, and expensive than microcomputers.
Any visual display of structural or functional patterns of organs or tissues for diagnostic evaluation. It includes measuring physiologic and metabolic responses to physical and chemical stimuli, as well as ultramicroscopy.
The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material).
Data processing largely performed by automatic means.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
Methods of creating machines and devices.
Controlled operation of an apparatus, process, or system by mechanical or electronic devices that take the place of human organs of observation, effort, and decision. (From Webster's Collegiate Dictionary, 1993)
Integrated set of files, procedures, and equipment for the storage, manipulation, and retrieval of information.
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
Substances used to allow enhanced visualization of tissues.
The electronic transmission of radiological images from one location to another for the purposes of interpretation and/or consultation. Users in different locations may simultaneously view images with greater access to secondary consultations and improved continuing education. (From American College of Radiology, ACR Standard for Teleradiology, 1994, p3)
Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.
Elements of limited time intervals, contributing to particular results or situations.
A computer architecture, implementable in either hardware or software, modeled after biological neural networks. Like the biological system in which the processing capability is a result of the interconnection strengths between arrays of nonlinear processing nodes, computerized neural networks, often called perceptrons or multilayer connectionist models, consist of neuron-like units. A homogeneous group of units makes up a layer. These networks are good at pattern recognition. They are adaptive, performing tasks by example, and thus are better for decision-making than are linear learning machines or cluster analysis. They do not require explicit programming.
Computer-assisted processing of electric, ultrasonic, or electronic signals to interpret function and activity.
Computer-based systems for input, storage, display, retrieval, and printing of information contained in a patient's medical record.
Computed tomography modalities which use a cone or pyramid-shaped beam of radiation.
Information application based on a variety of coding methods to minimize the amount of data to be stored, retrieved, or transmitted. Data compression can be applied to various forms of data, such as images and signals. It is used to reduce costs and increase efficiency in the maintenance of large volumes of data.
Protective measures against unauthorized access to or interference with computer operating systems, telecommunications, or data structures, especially the modification, deletion, destruction, or release of data in computers. It includes methods of forestalling interference by computer viruses or so-called computer hackers aiming to compromise stored data.
Theory and development of COMPUTER SYSTEMS which perform tasks that normally require human intelligence. Such tasks may include speech recognition, LEARNING; VISUAL PERCEPTION; MATHEMATICAL COMPUTING; reasoning, PROBLEM SOLVING, DECISION-MAKING, and translation of language.
Computers whose input, output and state transitions are carried out by biochemical interactions and reactions.
Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
Organized activities related to the storage, location, search, and retrieval of information.
Text editing and storage functions using computer software.
Descriptive anatomy based on three-dimensional imaging (IMAGING, THREE-DIMENSIONAL) of the body, organs, and structures using a series of computer multiplane sections, displayed by transverse, coronal, and sagittal analyses. It is essential to accurate interpretation by the radiologist of such techniques as ultrasonic diagnosis, MAGNETIC RESONANCE IMAGING, and computed tomography (TOMOGRAPHY, X-RAY COMPUTED). (From Lane & Sharfaei, Modern Sectional Anatomy, 1992, Preface)
The visual display of data in a man-machine system. An example is when data is called from the computer and transmitted to a CATHODE RAY TUBE DISPLAY or LIQUID CRYSTAL display.
The storing or preserving of video signals for television to be played back later via a transmitter or receiver. Recordings may be made on magnetic tape or discs (VIDEODISC RECORDING).
Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.
Screens which absorb the energy in the x-ray beam that has penetrated the patient and convert this energy into a light pattern which has as nearly as possible the same information as the original x-ray beam. The more light a screen produces for a given input of x-radiation, the less x-ray exposure and thus shorter exposure time are needed to expose the film. In most film-screen systems, the film is sandwiched between two screens in a cassette so that the emulsion on each side is exposed to the light from its contiguous screen.
A form of interactive entertainment in which the player controls electronically generated images that appear on a video display screen. This includes video games played in the home on special machines or home computers, and those played in arcades.
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
The field which deals with illustrative clarification of biomedical concepts, as in the use of diagrams and drawings. The illustration may be produced by hand, photography, computer, or other electronic or mechanical methods.
The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph.
Computers that combine the functions of analog and digital computers. (Sippl, Computer Dictionary, 4th ed)
Devices capable of receiving data, retaining data for an indefinite or finite period of time, and supplying data upon demand.
Imaging methods that result in sharp images of objects located on a chosen plane and blurred images located above or below the plane.
Transmission and interpretation of tissue specimens via remote telecommunication, generally for the purpose of diagnosis or consultation but may also be used for continuing education.
Extensive collections, reputedly complete, of facts and data garnered from material of a specialized subject area and made available for analysis and application. The collection can be automated by various contemporary methods for retrieval. The concept should be differentiated from DATABASES, BIBLIOGRAPHIC which is restricted to collections of bibliographic references.
The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.
A specialty concerned with the use of x-ray and other forms of radiant energy in the diagnosis and treatment of disease.
Specifications and instructions applied to the software.
Statistical formulations or analyses which, when applied to data and found to fit the data, are then used to verify the assumptions and parameters used in the analysis. Examples of statistical models are the linear model, binomial model, polynomial model, two-parameter model, etc.
Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image.
The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, atomic number 43, and atomic weight 98.91. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.
Computer systems utilized as adjuncts in the treatment of disease.
Materials, frequently computer applications, that combine some or all of text, sound, graphics, animation, and video into integrated packages. (Thesaurus of ERIC Descriptors, 1994)
The science of designing, building or equipping mechanical devices or artificial environments to the anthropometric, physiological, or psychological requirements of the people who will use them.
Systems where the input data enter the computer directly from the point of origin (usually a terminal or workstation) and/or in which output data are transmitted directly to that terminal point of origin. (Sippl, Computer Dictionary, 4th ed)
Organic compounds that contain technetium as an integral part of the molecule. These compounds are often used as radionuclide imaging agents.
Harmful and painful condition caused by overuse or overexertion of some part of the musculoskeletal system, often resulting from work-related physical activities. It is characterized by inflammation, pain, or dysfunction of the involved joints, bones, ligaments, and nerves.
Use of computers or computer systems for doing routine clerical work, e.g., billing, records pertaining to the administration of the office, etc.
Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.
Surgical procedures conducted with the aid of computers. This is most frequently used in orthopedic and laparoscopic surgery for implant placement and instrument guidance. Image-guided surgery interactively combines prior CT scans or MRI images with real-time video.
Integrated, computer-assisted systems designed to store, manipulate, and retrieve information concerned with the administrative and clinical aspects of providing medical services within the hospital.
Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A complex of gadolinium with a chelating agent, diethylenetriamine penta-acetic acid (DTPA see PENTETIC ACID), that is given to enhance the image in cranial and spinal MRIs. (From Martindale, The Extra Pharmacopoeia, 30th ed, p706)
In statistics, a technique for numerically approximating the solution of a mathematical problem by studying the distribution of some random variable, often generated by a computer. The name alludes to the randomness characteristic of the games of chance played at the gambling casinos in Monte Carlo. (From Random House Unabridged Dictionary, 2d ed, 1993)
Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.
Any device or element which converts an input signal into an output signal of a different form. Examples include the microphone, phonographic pickup, loudspeaker, barometer, photoelectric cell, automobile horn, doorbell, and underwater sound transducer. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
A film base coated with an emulsion designed for use with x-rays.
Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, CLINICAL TRIALS AS TOPIC; DRUG EVALUATION; and DRUG EVALUATION, PRECLINICAL are available.
Microscopy of specimens stained with fluorescent dye (usually fluorescein isothiocyanate) or of naturally fluorescent materials, which emit light when exposed to ultraviolet or blue light. Immunofluorescence microscopy utilizes antibodies that are labeled with fluorescent dye.
Approximate, quantitative reasoning that is concerned with the linguistic ambiguity which exists in natural or synthetic language. At its core are variables such as good, bad, and young as well as modifiers such as more, less, and very. These ordinary terms represent fuzzy sets in a particular problem. Fuzzy logic plays a key role in many medical expert systems.
The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.
The study of the structure of various TISSUES of organisms on a microscopic level.
Continuous frequency distribution of infinite range. Its properties are as follows: 1, continuous, symmetrical distribution with both tails extending to infinity; 2, arithmetic mean, mode, and median identical; and 3, shape completely determined by the mean and standard deviation.
A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)
Physical motion, i.e., a change in position of a body or subject as a result of an external force. It is distinguished from MOVEMENT, a process resulting from biological activity.
Small-scale tests of methods and procedures to be used on a larger scale if the pilot study demonstrates that these methods and procedures can work.
X-ray visualization of the chest and organs of the thoracic cavity. It is not restricted to visualization of the lungs.
The creation of a visual display of the inside of the entire body of a human or animal for the purposes of diagnostic evaluation. This is most commonly achieved by using MAGNETIC RESONANCE IMAGING; or POSITRON EMISSION TOMOGRAPHY.
A specialized field of physics and engineering involved in studying the behavior and properties of light and the technology of analyzing, generating, transmitting, and manipulating ELECTROMAGNETIC RADIATION in the visible, infrared, and ultraviolet range.
Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.
The act of testing the software for compliance with a standard.
A field of biology concerned with the development of techniques for the collection and manipulation of biological data, and the use of such data to make biological discoveries or predictions. This field encompasses all computational methods and theories for solving biological problems including manipulation of models and datasets.
A light microscopic technique in which only a small spot is illuminated and observed at a time. An image is constructed through point-by-point scanning of the field in this manner. Light sources may be conventional or laser, and fluorescence or transmitted observations are possible.
The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.
The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics.
The field of information science concerned with the analysis and dissemination of medical data through the application of computers to various aspects of health care and medicine.
The hollow, muscular organ that maintains the circulation of the blood.
Electronic instruments that produce photographs or cathode-ray tube images of the gamma-ray emissions from organs containing radionuclide tracers.
Automated systems applied to the patient care process including diagnosis, therapy, and systems of communicating medical data within the health care setting.
An imaging method using LASERS that is used for mapping subsurface structure. When a reflective site in the sample is at the same optical path length (coherence) as the reference mirror, the detector observes interference fringes.
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.
Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.
A representation, generally small in scale, to show the structure, construction, or appearance of something. (From Random House Unabridged Dictionary, 2d ed)
Isotopes that exhibit radioactivity and undergo radioactive decay. (From Grant & Hackh's Chemical Dictionary, 5th ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Specific languages used to prepare computer programs.
Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.
The transmission and reproduction of transient images of fixed or moving objects. An electronic system of transmitting such images together with sound over a wire or through space by apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound. (From Webster, 3rd ed)
A specialty concerned with the nature and cause of disease as expressed by changes in cellular or tissue structure and function caused by the disease process.
Computer-assisted study of methods for obtaining useful quantitative solutions to problems that have been expressed mathematically.
The procedures involved in combining separately developed modules, components, or subsystems so that they work together as a complete system. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A diagnostic technique that incorporates the measurement of molecular diffusion (such as water or metabolites) for tissue assessment by MRI. The degree of molecular movement can be measured by changes of apparent diffusion coefficient (ADC) with time, as reflected by tissue microstructure. Diffusion MRI has been used to study BRAIN ISCHEMIA and tumor response to treatment.
The properties, processes, and behavior of biological systems under the action of mechanical forces.
The illumination of an environment and the arrangement of lights to achieve an effect or optimal visibility. Its application is in domestic or in public settings and in medical and non-medical environments.
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.
A heavy, bluish white metal, atomic number 81, atomic weight [204.382; 204.385], symbol Tl.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Computed tomography where there is continuous X-ray exposure to the patient while being transported in a spiral or helical pattern through the beam of irradiation. This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography, where data is obtained and computed from individual sequential exposures.
The compound is given by intravenous injection to do POSITRON-EMISSION TOMOGRAPHY for the assessment of cerebral and myocardial glucose metabolism in various physiological or pathological states including stroke and myocardial ischemia. It is also employed for the detection of malignant tumors including those of the brain, liver, and thyroid gland. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1162)
Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.
Computer programs based on knowledge developed from consultation with experts on a problem, and the processing and/or formalizing of this knowledge using these programs in such a manner that the problems may be solved.
An optical disk storage system for computers on which data can be read or from which data can be retrieved but not entered or modified. A CD-ROM unit is almost identical to the compact disk playback device for home use.
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
A series of steps taken in order to conduct research.
Diseases of the muscles and their associated ligaments and other connective tissue and of the bones and cartilage viewed collectively.
A graphic means for assessing the ability of a screening test to discriminate between healthy and diseased persons; may also be used in other studies, e.g., distinguishing stimuli responses as to a faint stimuli or nonstimuli.
A computer based method of simulating or analyzing the behavior of structures or components.
Application of statistical procedures to analyze specific observed or assumed facts from a particular study.
Software designed to store, manipulate, manage, and control data for specific uses.
Information systems, usually computer-assisted, designed to store, manipulate, and retrieve information for planning, organizing, directing, and controlling administrative activities associated with the provision and utilization of ambulatory care services and facilities.
Motion of an object in which either one or more points on a line are fixed. It is also the motion of a particle about a fixed point. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Radiographic examination of the breast.
The diversion of RADIATION (thermal, electromagnetic, or nuclear) from its original path as a result of interactions or collisions with atoms, molecules, or larger particles in the atmosphere or other media. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Projection of near-IR light (INFRARED RAYS), in the 700-1000 nm region, across an object in parallel beams to an array of sensitive photodetectors. This is repeated at various angles and a mathematical reconstruction provides three dimensional MEDICAL IMAGING of tissues. Based on the relative transparency of tissues to this spectra, it has been used to monitor local oxygenation, brain and joints.
Timing the acquisition of imaging data to specific points in the breathing cycle to minimize image blurring and other motion artifacts. The images are used diagnostically and also interventionally to coordinate radiation treatment beam on/off cycles to protect healthy tissues when they move into the beam field during different times in the breathing cycle.
The study of the structures of organisms for applications in art: drawing, painting, sculpture, illustration, etc.
Computer-assisted analysis and processing of problems in a particular area.
Examination of the interior of the eye with an ophthalmoscope.
Organized collections of computer records, standardized in format and content, that are stored in any of a variety of computer-readable modes. They are the basic sets of data from which computer-readable files are created. (from ALA Glossary of Library and Information Science, 1983)
Materials used as reference points for imaging studies.
Three-dimensional computed tomographic imaging with the added dimension of time, to follow motion during imaging.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
Equipment that provides mentally or physically disabled persons with a means of communication. The aids include display boards, typewriters, cathode ray tubes, computers, and speech synthesizers. The output of such aids includes written words, artificial speech, language signs, Morse code, and pictures.
Recording of pertinent information concerning patient's illness or illnesses.
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
A system in which the functions of the man and the machine are interrelated and necessary for the operation of the system.
A noninvasive technique that enables direct microscopic examination of the surface and architecture of the SKIN.
Systematic organization, storage, retrieval, and dissemination of specialized information, especially of a scientific or technical nature (From ALA Glossary of Library and Information Science, 1983). It often involves authenticating or validating information.
A branch of biology dealing with the structure of organisms.
The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.
Computer-assisted mathematical calculations of beam angles, intensities of radiation, and duration of irradiation in radiotherapy.
Theoretical representations that simulate the behavior or activity of genetic processes or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
Perception of three-dimensionality.
Precise procedural mathematical and logical operations utilized in the study of medical information pertaining to health care.
Patterns (real or mathematical) which look similar at different scales, for example the network of airways in the lung which shows similar branching patterns at progressively higher magnifications. Natural fractals are self-similar across a finite range of scales while mathematical fractals are the same across an infinite range. Many natural, including biological, structures are fractal (or fractal-like). Fractals are related to "chaos" (see NONLINEAR DYNAMICS) in that chaotic processes can produce fractal structures in nature, and appropriate representations of chaotic processes usually reveal self-similarity over time.
The science and art of collecting, summarizing, and analyzing data that are subject to random variation. The term is also applied to the data themselves and to the summarization of the data.
Communications networks connecting various hardware devices together within or between buildings by means of a continuous cable or voice data telephone system.
Systematic gathering of data for a particular purpose from various sources, including questionnaires, interviews, observation, existing records, and electronic devices. The process is usually preliminary to statistical analysis of the data.
The concave interior of the eye, consisting of the retina, the choroid, the sclera, the optic disk, and blood vessels, seen by means of the ophthalmoscope. (Cline et al., Dictionary of Visual Science, 4th ed)
An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.
Term generally used to describe complaints related to refractive error, ocular muscle imbalance, including pain or aching around the eyes, burning and itchiness of the eyelids, ocular fatigue, and headaches.
The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.
The detailed examination of observable activity or behavior associated with the execution or completion of a required function or unit of work.
Types of spiral computed tomography technology in which multiple slices of data are acquired simultaneously improving the resolution over single slice acquisition technology.
Collections of illustrative plates, charts, etc., usually with explanatory captions.
The use of pre-treatment imaging modalities to position the patient, delineate the target, and align the beam of radiation to achieve optimal accuracy and reduce radiation damage to surrounding non-target tissues.
Delivery of health services via remote telecommunications. This includes interactive consultative and diagnostic services.
The study, control, and application of the conduction of ELECTRICITY through gases or vacuum, or through semiconducting or conducting materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Discrete concentrations of energy, apparently massless elementary particles, that move at the speed of light. They are the unit or quantum of electromagnetic radiation. Photons are emitted when electrons move from one energy state to another. (From Hawley's Condensed Chemical Dictionary, 11th ed)
The rate dynamics in chemical or physical systems.
The use of molecularly targeted imaging probes to localize and/or monitor biochemical and cellular processes via various imaging modalities that include RADIONUCLIDE IMAGING; ULTRASONOGRAPHY; MAGNETIC RESONANCE IMAGING; FLUORESCENCE IMAGING; and MICROSCOPY.
Timing the acquisition of imaging data to specific points in the cardiac cycle to minimize image blurring and other motion artifacts.
Agents that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags.
Transmission of information over distances via electronic means.
The blending of separate images seen by each eye into one composite image.
Reference points located by visual inspection, palpation, or computer assistance, that are useful in localizing structures on or within the human body.
Statistical models in which the value of a parameter for a given value of a factor is assumed to be equal to a + bx, where a and b are constants. The models predict a linear regression.
Radiographic visualization of the body between the thorax and the pelvis, i.e., within the peritoneal cavity.
Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain).
The tendency of a gas or solute to pass from a point of higher pressure or concentration to a point of lower pressure or concentration and to distribute itself throughout the available space. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT.
Voluntary or reflex-controlled movements of the eye.
Production of an image when x-rays strike a fluorescent screen.
Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes.
Radiographic techniques used in dentistry.
Description of pattern of recurrent functions or procedures frequently found in organizational processes, such as notification, decision, and action.
Laboratory and other services provided to patients at the bedside. These include diagnostic and laboratory testing using automated information entry.
X-RAY COMPUTERIZED TOMOGRAPHY with resolution in the micrometer range.
The study of chance processes or the relative frequency characterizing a chance process.
The recording of images in three-dimensional form on a photographic film by exposing it to a laser beam reflected from the object under study.

Signal-, set- and movement-related activity in the human brain: an event-related fMRI study. (1/18387)

Electrophysiological studies on monkeys have been able to distinguish sensory and motor signals close in time by pseudorandomly delaying the cue that instructs the movement from the stimulus that triggers the movement. We have used a similar experimental design in functional magnetic resonance imaging (fMRI), scanning subjects while they performed a visuomotor conditional task with instructed delays. One of four shapes was presented briefly. Two shapes instructed the subjects to flex the index finger; the other two shapes coded the flexion of the middle finger. The subjects were told to perform the movement after a tone. We have exploited a novel use of event-related fMRI. By systematically varying the interval between the visual and acoustic stimuli, it has been possible to estimate the significance of the evoked haemodynamic response (EHR) to each of the stimuli, despite their temporal proximity in relation to the time constant of the EHR. Furthermore, by varying the phase between events and image acquisition, we have been able to achieve high temporal resolution while scanning the whole brain. We dissociated sensory and motor components of the sensorimotor transformations elicited by the task, and assessed sustained activity during the instructed delays. In calcarine and occipitotemporal cortex, the responses were exclusively associated with the visual instruction cues. In temporal auditory cortex and in primary motor cortex, they were exclusively associated with the auditory trigger stimulus. In ventral prefrontal cortex there were movement-related responses preceded by preparatory activity and by signal-related activity. Finally, responses associated with the instruction cue and with sustained activity during the delay period were observed in the dorsal premotor cortex and in the dorsal posterior parietal cortex. Where the association between a visual cue and the appropriate movement is arbitrary, the underlying visuomotor transformations are not achieved exclusively through frontoparietal interactions. Rather, these processes seem to rely on the ventral visual stream, the ventral prefrontal cortex and the anterior part of the dorsal premotor cortex.  (+info)

Optical mapping of Plasmodium falciparum chromosome 2. (2/18387)

Detailed restriction maps of microbial genomes are a valuable resource in genome sequencing studies but are toilsome to construct by contig construction of maps derived from cloned DNA. Analysis of genomic DNA enables large stretches of the genome to be mapped and circumvents library construction and associated cloning artifacts. We used pulsed-field gel electrophoresis purified Plasmodium falciparum chromosome 2 DNA as the starting material for optical mapping, a system for making ordered restriction maps from ensembles of individual DNA molecules. DNA molecules were bound to derivatized glass surfaces, cleaved with NheI or BamHI, and imaged by digital fluorescence microscopy. Large pieces of the chromosome containing ordered DNA restriction fragments were mapped. Maps were assembled from 50 molecules producing an average contig depth of 15 molecules and high-resolution restriction maps covering the entire chromosome. Chromosome 2 was found to be 976 kb by optical mapping with NheI, and 946 kb with BamHI, which compares closely to the published size of 947 kb from large-scale sequencing. The maps were used to further verify assemblies from the plasmid library used for sequencing. Maps generated in silico from the sequence data were compared to the optical mapping data, and good correspondence was found. Such high-resolution restriction maps may become an indispensable resource for large-scale genome sequencing projects.  (+info)

Examination of the transverse tubular system in living cardiac rat myocytes by 2-photon microscopy and digital image-processing techniques. (3/18387)

The transverse tubular system (t-system) of cardiac muscle is a structure that allows rapid propagation of excitation into the cell interior. Using 2-photon molecular excitation microscopy and digital image-processing methods, we have obtained a comprehensive overview of the t-system of rat ventricular myocytes in living cells. We show that it is possible to quantify the morphology of the t-system in terms of average local tubule diameter, branching pattern, and local abundance of the t-system by immersing living myocytes in a dextran-linked fluorescein solution. Our data suggest that previous electron microscopic examinations of t-system structure have underestimated both the geometric complexity of the t-system morphology and the fraction of cell volume occupied by the t-system (3.6% in this species). About 40% of tubules occur between Z-lines, and the t-tubule diameter is 255+/-0.85 nm (mean+/-SEM). The t-tubules leave the outer surface of the cell in an approximately rectangular array; however, at some points junctions between the t-tubules and the surface membrane are missing. In view of the complexity of the t-system apparent from our images, we propose that the t-system be renamed the "sarcolemmal Z rete." The methods presented here are generally applicable to the quantification of the sarcolemmal Z rete and other structures within cells by fluorescence microscopy in a variety of cell types.  (+info)

Referenceless interleaved echo-planar imaging. (4/18387)

Interleaved echo-planar imaging (EPI) is an ultrafast imaging technique important for applications that require high time resolution or short total acquisition times. Unfortunately, EPI is prone to significant ghosting artifacts, resulting primarily from system time delays that cause data matrix misregistration. In this work, it is shown mathematically and experimentally that system time delays are orientation dependent, resulting from anisotropic physical gradient delays. This analysis characterizes the behavior of time delays in oblique coordinates, and a new ghosting artifact caused by anisotropic delays is described. "Compensation blips" are proposed for time delay correction. These blips are shown to remove the effects of anisotropic gradient delays, eliminating the need for repeated reference scans and postprocessing corrections. Examples of phantom and in vivo images are shown.  (+info)

Parametric mapping of cerebral blood flow deficits in Alzheimer's disease: a SPECT study using HMPAO and image standardization technique. (5/18387)

This study assessed the accuracy and reliability of Automated Image Registration (AIR) for standardization of brain SPECT images of patients with Alzheimer's disease (AD). Standardized cerebral blood flow (CBF) images of patients with AD and control subjects were then used for group comparison and covariance analyses. METHODS: Thirteen patients with AD at an early stage (age 69.8+/-7.1 y, Clinical Dementia Rating Score 0.5-1.0, Mini-Mental State Examination score 19-23) and 20 age-matched normal subjects (age 69.5+/-8.3 y) participated in this study. 99mTc-hexamethyl propylenamine oxime (HMPAO) brain SPECT and CT scans were acquired for each subject. SPECT images were transformed to a standard size and shape with the help of AIR. Accuracy of AIR for spatial normalization was evaluated by an index calculated on SPECT images. Anatomical variability of standardized target images was evaluated by measurements on corresponding CT scans, spatially normalized using transformations established by the SPECT images. Realigned brain SPECT images of patients and controls were used for group comparison with the help of statistical parameter mapping. Significant differences were displayed on the respective voxel to generate three-dimensional Z maps. CT scans of individual subjects were evaluated by a computer program for brain atrophy. Voxel-based covariance analysis was performed on standardized images with ages and atrophy indices as independent variables. RESULTS: Inaccuracy assessed by functional data was 2.3%. The maximum anatomical variability was 4.9 mm after standardization. Z maps showed significantly decreased regional CBF (rCBF) in the frontal, parietal and temporal regions in the patient group (P < 0.001). Covariance analysis revealed that the effects of aging on rCBF were more pronounced compared with atrophy, especially in intact cortical areas at an early stage of AD. Decrease in rCBF was partly due to senility and atrophy, however these two factors cannot explain all the deficits. CONCLUSION: AIR can transform SPECT images of AD patients with acceptable accuracy without any need for corresponding structural images. The frontal regions of the brain, in addition to parietal and temporal lobes, may show reduced CBF in patients with AD even at an early stage of dementia. The reduced rCBF in the cortical regions cannot be explained entirely by advanced atrophy and fast aging process.  (+info)

Integrated visualization of functional and anatomic brain data: a validation study. (6/18387)

Two-dimensional SPECT display and three methods for integrated visualization of SPECT and MRI patient data are evaluated in a multiobserver study to determine whether localization of functional data can be improved by adding anatomical information to the display. METHODS: SPECT and MRI data of 30 patients were gathered and presented using four types of display: one of SPECT in isolation, two integrated two-dimensional displays and one integrated three-dimensional display. Cold and hot spots in the peripheral cortex were preselected and indicated on black-and-white hard copies of the image data. Nuclear medicine physicians were asked to assign the corresponding spots in the image data on the computer screen to a lobe and a gyrus and give a confidence rating for both localizations. Interobserver agreement using kappa statistics and average confidence ratings were assessed to interpret the reported observations. RESULTS: Both the interobserver agreement and the confidence of the observers were greater for the integrated two-dimensional displays than for the two-dimensional SPECT display. An additional increase in agreement and confidence was seen with the integrated three-dimensional display. CONCLUSION: Integrated display of SPECT and MR brain images provides better localization of cerebral blood perfusion abnormalities in the peripheral cortex in relation to the anatomy of the brain than single-modality display and increases the confidence of the observer.  (+info)

Anatomic validation of spatial normalization methods for PET. (7/18387)

Spatial normalization methods, which are indispensable for intersubject analysis in current PET studies, have been improved in many aspects. These methods have not necessarily been evaluated as anatomic normalization methods because PET images are functional images. However, in view of the close relation between brain function and morphology, it is very intriguing how precisely normalized brains coincide with each other. In this report, the anatomic precision of spatial normalization is validated with three different methods. METHODS: Four PET centers in Japan participated in this study. In each center, six normal subjects were recruited for both H2(15)O-PET and high-resolution MRI studies. Variations in the location of the anterior commissure (AC) and size and contours of the brain and the courses of major sulci were measured in spatially normalized MR images for each method. Spatial normalization was performed as follows. (a) Linear: The AC-posterior commissure and midsagittal plane were identified on MRI and the size of the brain was adjusted to the Talairach space in each axis using linear parameters. (b) Human brain atlas (HBA): Atlas structures were manually adjusted to MRI to determine linear and nonlinear transformation parameters and then MRI was transformed with the inverse of these parameters. (c) Statistical parametric mapping (SPM) 95: PET images were transformed into the template PET image with linear and nonlinear parameters in a least-squares manner. Then, coregistered MR images were transformed with the same parameters used for the PET transformation. RESULTS: The AC was well registered in all methods. The size of the brain normalized with SPM95 varied to a greater extent than with other approaches. Larger variance in contours was observed with the linear method. Only SPM95 showed significant superiority to the linear method when the courses of major sulci were compared. CONCLUSION: The results of this study indicate that SPM95 is as effective a spatial normalization as HBA, although it does not use anatomic images. Large variance in structures other than the AC and size of the brain in the linear method suggests the necessity of nonlinear transformations for effective spatial normalization. Operator dependency of HBA also must be considered.  (+info)

Using vascular structure for CT-SPECT registration in the pelvis. (8/18387)

The authors outline a method for three-dimensional registration of pelvic CT and 111In-labeled monoclonal antibody capromab pendetide (111In MoAb 7E11.C5) images using 99mTc-labeled red blood cell SPECT data. METHODS: This method of CT-SPECT registration relies on the identification of major blood vessels in the CT and 99mTc SPECT images. The vessels are segmented from the image datasets by outlining them on transverse planar slices using a mouse-based drawing tool. Stacking the transverse outlines provides a three-dimensional representation of the vascular structures. Registration is performed by matching the surfaces of the segmented volumes. Dual isotope acquisition of 111In and 99mTc activities provides precise SPECT-SPECT registration so that registration in three dimensions of the 111In MoAb and CT images is achieved by applying the same transformation obtained from the 99mTc SPECT-CT registration. RESULTS: This method provided accurate registration of pelvic structures and significantly improved interpretation of 111In MoAb 7E11.C5 exams. Furthermore, sites of involvement by prostate cancer suggested by the 111In MoAb examination could be interpreted with the bony and soft tissue (nodal) anatomy seen on CT. CONCLUSION: This method is a general clinical tool for the registration of pelvic CT and SPECT imaging data. There are immediate applications in conformal radiation therapy treatment planning for certain prostate cancer patients.  (+info)

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ABSTRACT with KEYWORDS: analysis, computer-assisted image; computer-assisted image analysis; computer-assisted image processing; diagnostic imaging; hepatocellular carcinoma; hepatoma; image analysis, computer-assisted; image processing, computer-assisted; image reconstruction; liver cancer, adult; liver cell carcinoma; morphometry, nuclear area; tumor grading
Medica Corporation (Bedford, Mass.) is globally launching the EasyCell assistant cell image analyzer for hematology laboratories. The EasyCell scans blood
Syngene, a world-leading manufacturer of image analysis solutions is delighted to introduce G:BOX, its unique new image analyser concept. Click to read more...
GSA Image Analyser Batch Edition 1.1.4 - A program to analyse images of any kind (e.g. cell counting) in batch mode. at Shareware Lair
ALBANY, New York, March 20, 2017 /PRNewswire/ --. With the presence of a number of leading players, namely, GE Healthcare, Siemens Healthineers, Agfa-Gevaert N.V., Hologic Inc., and Pie Medical Imaging at the global level, the worldwide medical image analysis software market demonstrates a highly fragmented and competitive landscape, states a new study by Transparency Market Research (TMR). These players, collectively, could hold only 23.5% of the overall market in 2015.. Currently, participants are being actively involved in technological innovation in order to gain a competitive edge over their peers. However, a shift in their focus towards partnerships and collaborations can be observed over the forthcoming years.. In 2015, the opportunity in the global market for medical image analysis software was worth US$2.35 bn, reports the report. Researchers expect this market to rise at a CAGR of 8.10% during the period from 2016 to 2024 and attain a value of US$4.66 bn by the end of the period of ...
[112 Pages Report] Check for Discount on Global Medical Image Analysis Software Sales Market Report 2018 report by QYResearch Group. In this report, the global Medical Image Analysis Software market...
1. The difference in density/IR exposure between two adjacent areas on an image. One of the two properties that allow detail to be visualized on an image. 2. How do low contrast images differ from high contrast images? 2. Low contrast images have many shades of gray (more information on the image). Also referred to…
The TrueMURA analysis module is the first commercial system able to provide advanced image analysis algorithms for computing JND (
In a retailing system, an image capture system is provided and used to capture reference images of models wearing apparel items. At a retailers place of business, an image capture system substantially identical to that used to capture the reference images is also provided. A customer has his or her image captured by the image capture system at the retailers place of business. Subsequently, when the customer is in close proximity to an image display area within the retailers place of business, a composite image comprising the customers captured image and one of the reference images may be provided. The composite image may comprise full motion video or still images. In this manner, the customer is given the opportunity to virtually assess the selected merchandise without actually having to try on the apparel.
In the case where a digital camera is used for evaluating a display quality of an image display panel, moire is generated due to a shift of a pixel pitch between a pixel of a panel and a pixel of a digital camera, and thus, a great influence is given as measurement deviation. The present invention carries out a panel display quality evaluation at low cost and short time with relieved influence of moire by treating a value, which is obtained by recognizing a coordinate of a panel pixel in a shot image based on an image for detecting a coordinate and positional information thereof with high accuracy and by calculating average luminance by panel pixel unit based on a center position of a coordinate, as representative luminance in each pixel of the panel, in a panel evaluation method of shooting an image display panel with a digital camera.
Andrew Greyoriginaldate 8/1/2008 7:51:37 PMheight 563width 375orientation 1camerasoftware Adobe Photoshop CS3 originaldate 1/1/0001 6:00:00 AMheight 1350width 900orientation 1camerasoftware Adobe Photoshop CS5 originaldate 1/23/2011 7:51:43 AMheight 456width 304orientation 1camerasoftware Adobe Photoshop CS3 originaldate 1/1/0001 6:00:00 AMheight 750width 500orientation 1camerasoftware Adobe Photoshop CS6 originaldate 1/1/0001 6:00:00 AMheight 750width 500orientation 1camerasoftware Adobe Photoshop CS6 originaldate 1/1/0001 6:00:00 AMheight 750width 500orientation 1camerasoftware Adobe Photoshop CS3 originaldate 1/1/0001 6:00:00 AMwidth 500height 755originaldate 1/1/0001 6:00:00 AMwidth 400height 600originaldate 1/1/0001 6:00:00 AMheight 600width 400orientation 1camerasoftware Adobe Photoshop CS3 originaldate 1/1/0001 6:00:00 AMheight 600width 400orientation 1camerasoftware Adobe Photoshop CS3 originaldate 9/8/2010 12:49:58 AMheight 480width 320orientation 1camerasoftware Adobe Photoshop CS3 ...
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Detailed knowledge about the vascular anatomy and blood flow at a macro- and microvascular level is often required for diagnosis, therapy decision, and intervention in case of cerebrovascular diseases. This knowledge can be obtained from high resolution 3D and time-resolved magnetic resonance imaging datasets. However, advanced computer-assisted image analysis methods are needed for an improved and faster diagnosis of patients with a cerebrovascular disease, due to the massive amount of acquired data. From a methodical perspective, an automatic cerebrovascular segmentation, hemodynamic analysis, and combined visualization of vascular structures together with the corresponding hemodynamic situation is required. The multi-step segmentation framework presented in this work was developed to enable a sufficient delineation of all vessels, including small and malformed vessels, from high resolution 3D angiographies. The purpose of the first step of this segmentation framework is to extract the brain tissue
article{c21f6689-6934-4c0b-8c77-17f94d2391f0, abstract = {Computed tomography (CT) is one of the most important modalities in a radiological department. This technique not only produces images that enable radiological reports with high diagnostic confidence, but it may also provide an elevated radiation dose to the patient. The radiation dose can be reduced by using advanced image reconstruction algorithms. This study was performed on a Brilliance iCT, equipped with iDose(4) iterative reconstruction and an iterative model-based reconstruction (IMR) method. The purpose was to investigate the effect of reduced slice thickness combined with an IMR method on image quality compared with standard slice thickness with iDose(4) reconstruction. The results of objective and subjective image quality evaluations showed that a thinner slice combined with IMR can improve the image quality and reduce partial volume artefacts compared with the standard slice thickness with iDose(4). In conclusion, IMR enables ...
The present invention relates to automated document processing and more particularly, to methods and systems for document image capture and processing using mobile devices. In accordance with various embodiments, methods and systems for document image capture on a mobile communication device are provided such that the image is optimized and enhanced for data extraction from the document as depicted. These methods and systems may comprise capturing an image of a document using a mobile communication device; transmitting the image to a server; and processing the image to create a bi-tonal image of the document for data extraction. Additionally, these methods and systems may comprise capturing a first image of a document using the mobile communication device; automatically detecting the document within the image; geometrically correcting the image; binarizing the image; correcting the orientation of the image; correcting the size of the image; and outputting the resulting image of the document.
Local tissue growth patterns underlying normal fetal human brain gyrification quantified in utero[22] Recent development in fetal MRI motion correction and computational image analysis techniques were employed in this study to help with the understanding of the patterns of local tissue growth. These techniques were applied to 40 normal fetal human brains in the period of primary sulcal formation (20-28 gestational weeks). This time period covers a developmental stage from the point at which only few primary sulci have developed until the time at which most of the primary sulci have formed, but before the emergence of secondary sulci on MRI. This developmental period is also important clinically, since the clinical MRI scans are also performed at this gestational age. Therefore it is important to describe the normal growth patterns in this period in order to be able to recognise abnormalities in the formation of sulci and gyri. Techniques mentioned previously were utilised to quantify tissue ...
Image-Pro Plus is an image analysis software package for fluorescence imaging, quality assurance, materials imaging, medical imaging and image analysis, industrial image processing and various other scientific image processing.
Recent development in fetal MRI motion correction and computational image analysis techniques were employed in this study to help with the understanding of the patterns of local tissue growth. These techniques were applied to 40 normal fetal human brains in the period of primary sulcal formation (20-28 gestational weeks). This time period covers a developmental stage from the point at which only few primary sulci have developed until the time at which most of the primary sulci have formed, but before the emergence of secondary sulci on MRI. This developmental period is also important clinically, since the clinical MRI scans are also performed at this gestational age. Therefore it is important to describe the normal growth patterns in this period in order to be able to recognise abnormalities in the formation of sulci and gyri. Techniques mentioned previously were utilised to quantify tissue locations in order to map the tissues that were expanding with a higher or lower growth rate than the ...
The major driving factors for the growth of the medical image analysis software market in these regions arerapid technological advancement, and the growing demand for platform-independent and n-dimensional image processing and visualization.
This review explores how imaging techniques are being developed with a focus on deployment for crop monitoring methods. Imaging applications are discussed in relation to both field and glasshouse-based plants, and techniques are sectioned into healthy and diseased plant classification with an emphasis on classification accuracy, early detection of stress, and disease severity. A central focus of the review is the use of hyperspectral imaging and how this is being utilised to find additional information about plant health, and the ability to predict onset of disease. A summary of techniques used to detect biotic and abiotic stress in plants is presented, including the level of accuracy associated with each method.. ...
Global Medical Image Analysis Software Market size is forecasted to reach USD 4.1 Billion by 2024 according to a report by Goldstein Research. Get medical imaging software market size, trends, insights and market leaders analysis.
The global ultrasound image analysis software market is expected to reach USD 1.2 billion by 2025, according to a new study by Grand View Research, Inc. The growing prevalence of
The Medical Image Analysis Software Market report provides in-depth analysis of parent market trends, macro-economic indicators and governing factors along
Quantitative microscopy deals with the extraction of quantitative measurements from samples observed under a microscope. Recent developments in microscopy systems, sample preparation and handling techniques have enabled high throughput biological experiments resulting in large amounts of image data, at biological scales ranging from subcellular structures such as fluorescently tagged nucleic acid sequences to whole organisms such as zebrafish embryos. Consequently, methods and algorithms for automated quantitative analysis of these images have become increasingly important. These methods range from traditional image analysis techniques to use of deep learning architectures.. Many biomedical microscopy assays result in fluorescent spots. Robust detection and precise localization of these spots are two important, albeit sometimes overlapping, areas for application of quantitative image analysis. We demonstrate the use of popular deep learning architectures for spot detection and compare them ...
In this research line we aim at developing ultrasound (US) image analysis techniques in order to develop tools for image enhancement, lesion detection, biomarkers measurements from 2D, 3D and 4D US images. Currently we address several US images analysis methods in ginecology/obstetrics departments and vascular US image analysis. Example of this is the software package, cIMsT, the Carotid Intima-Media Segmentation and Thickness Measurement System. It was developed at INESC TEC - in cooperation with the Department of Neurology, São João Hospital Center, Portugal. The system accepts as input B-mode longitudinal ultrasound images, automatically segments the far and near media-intima and lumen-intima walls, and outputs several image results and measurements, namely the intima-media thickness and plaque burden. cIMsT provides the possibility of manual adjustments for correcting the automatic segmentation results.. ...
Virtually all of the otolith examinations carried out in our laboratory take advantage of computer-assisted microscopic imaging techniques, or image analysis. Image analysis systems allow for image enhancement, manipulation, storage and quantification with an accuracy and speed that cannot be matched with the eyes or a microscope alone. In its simplest form, an image analysis system (IAS) can store an image (whether from a microscope, scanner, camera or computer) and allow for its subsequent recall and display upon command. Such a system is capable of reproducing the original image, unaltered. In practice however, images entered into an IAS are generally enhanced and/or measured before redisplay; therein lies their advantage over visual examination.. Image analysis systems are now routine in many scientific disciplines, and their applications to otolith examinations are many-fold. Some of the most frequent applications to our work are as follows:. ...
Fluorescence microscopy is the primary tool for studying complex processes inside individual living cells. Technical advances in both molecular biology and microscopy have made it possible to image cells from many genetic and environmental backgrounds. These images contain a vast amount of information, which is often hidden behind various sources of noise, convoluted with other information and stochastic in nature. Accessing the desired biological information therefore requires new tools of computational image analysis and modeling. Here, we review some of the recent advances in computational analysis of images obtained from fluorescence microscopy, focusing on bacterial systems. We emphasize techniques that are readily available to molecular and cell biologists but also point out examples where problem-specific image analyses are necessary. Thus, image analysis is not only a toolkit to be applied to new images but also an integral part of the design and implementation of a microscopy experiment. ...
PURPOSE: To examine the effects of the reconstruction algorithm of magnitude images from multichannel diffusion MRI on fiber orientation estimation. THEORY AND METHODS: It is well established that the method used to combine signals from different coil elements in multichannel MRI can have an impact on the properties of the reconstructed magnitude image. Using a root-sum-of-squares approach results in a magnitude signal that follows an effective noncentral-χ distribution. As a result, the noise floor, the minimum measurable in the absence of any true signal, is elevated. This is particularly relevant for diffusion-weighted MRI, where the signal attenuation is of interest. RESULTS: In this study, we illustrate problems that such image reconstruction characteristics may cause in the estimation of fiber orientations, both for model-based and model-free approaches, when modern 32-channel coils are used. We further propose an alternative image reconstruction method that is based on sensitivity encoding
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In this Adobe Photoshop Elements 12 training course, expert author Andy Anderson teaches you about the useful tools and techniques that are available to you in this powerful photo managing … - Selection from Adobe Photoshop Elements 12 [Video]
Syngene, a world-leading manufacturer of image analysis solutions, is pleased to announce two of its G:BOX multi-application imaging systems have shown excellent performance with SuperArray Biosciences Oligo GEArrays ® , offering researchers a precise method of characterizing gene expression.
Histopathology image analysis is a gold standard for cancer recognition and diagnosis. Automatic analysis of histopathology images can help pathologists diagnose tumor and cancer subtypes, alleviating the workload of pathologists. There are two basic types of tasks in digital histopathology image analysis: image classification and image segmentation. Typical problems with histopathology images that hamper automatic analysis include complex clinical representations, limited quantities of training images in a dataset, and the extremely large size of singular images (usually up to gigapixels). The property of extremely large size for a single image also makes a histopathology image dataset be considered large-scale, even if the number of images in the dataset is limited. In this paper, we propose leveraging deep convolutional neural network (CNN) activation features to perform classification, segmentation and visualization in large-scale tissue histopathology images. Our framework transfers features
Syngene, a world-leading manufacturer of image analysis solutions is delighted to introduce PXi, a new high resolution, multi-application image analysis system. This powerful system is currently the best in its class for scientists that want a compact, one-click method for accurately imaging chemiluminescent and fluorescent blots, as well as 1-D gels (up to 10cm x 12 cm) stained with any type of fluorescent dye...
Results within minutes | Automated quantitative image analysis for wound healing and cell migration assays | Objective and reproducible analysis
A source image of the hardware and software configuration of a source computer, including the state of at least one source disk, is automatically captured. The source computer may remain unprepared and requires no program for facilitating computer cloning and reconfiguration. The source image is automatically analyzed and the hardware configuration of a destination computer is determined. The source image is modified as needed for either compatibility with the destination computer, or for customization, and after possible modification the source image is deployed on the destination computer. Either or both of the source and destination computers may be virtual machines.
Purpose: The purpose of this study was to investigate the correlation between model observer and human observer performance in CT imaging for the task of lesion detection and localization when the lesion location is uncertain.Methods: Two cylindrical rods (3-mm and 5-mm diameters) were placed in a 35 × 26 cm torso-shaped water phantom to simulate lesions with −15 HU contrast at 120 kV. The phantom was scanned 100 times on a 128-slice CT scanner at each of four dose levels (CTDIvol = 5.7, 11.4, 17.1, and 22.8 mGy). Regions of interest (ROIs) around each lesion were extracted to generate images with signal-present, with each ROI containing 128 × 128 pixels. Corresponding ROIs of signal-absent images were generated from images without lesion mimicking rods. The location of the lesion (rod) in each ROI was randomly distributed by moving the ROIs around each lesion. Human observer studies were performed by having three trained observers identify the presence or absence of lesions, indicating the ...
It is possible to improve a diagnostic performance by a dynamic image and in particular, to provide information effective for diagnosis of the lung ventilation function. Provided is a dynamic image capturing system including: a calculation device which calculates a dynamic feature amount according to a plurality of frame images of the dynamic image captured by an imaging device; and a diagnosis console which displays the frame images of the captured dynamic image as a dynamic image display or a still image display on a display screen of a display unit and colors at least one of the frame images with a color in accordance with a calculation result of a feature amount obtained by the calculation device. In the diagnosis of the lung ventilation function, the breast portion of an examinee is dynamically imaged over a plurality of time phases to calculate a feature amount and an estimated ventilation amount at each of the time phases, so that the calculation results are displayed on the display screen.
TY - JOUR. T1 - Pattern classification of images from acetic acid- based cervical cancer screening. T2 - A review. AU - Kudva, Vidya. AU - Prasad, Keerthana. PY - 2018/1/1. Y1 - 2018/1/1. N2 - Automated analysis of digital cervix images acquired during visual inspection with acetic acid (VIA) is found to be of great help to physicians in diagnosing cervical cancer. Application of 3-5% acetic acid to the cervix turns abnormal lesions white, while normal lesions remain unchanged. Digital images of the cervix can be acquired during VIA procedure and can be analyzed using image-processing algorithms. Three main attributes to be considered for analysis are color, vascular patterns, and lesion margins, which differentiate between normal and abnormal lesions. This paper provides a review of state-of-the-art image analysis methods to process digital images of the cervix, acquired during VIA procedure for cervical cancer screening of classification of abnormal lesions.. AB - Automated analysis of digital ...
BAS 2500 Image Analysis System from FUJIFILM Life Science,The BAS-2500 is ideal for the following applications: Molecular Biology (1D electrophoresis, 2D electrophoresis, DNA, protein blots, Macroarrays); Pharmacokinetics & Toxicology (whole body autoradiography, thin layer chromatography); Physical and Material Structural Analysis (x-ray crystallography,,biological,biology supply,biology supplies,biology product
Smith, S.M.; Schreier, H.; Wiart, R., 1987: Agricultural field management with micro-computer based GIS and image analysis systems
When it is estimated that first average brightness of image information of a projection image is under second average brightness of image information of a source image having a single spatial frequency on which a normal compensation is performed, an area having brightness above the second average brightness in the image information of the projection image is increased, and when it is estimated that the first average brightness is above the second average brightness, an area having brightness under the second average brightness in the image information of the projection image is increased.
a background comprising a white cyclorama; a front light source positioned in a longitudinal axis intersecting the background, the longitudinal axis further being substantially perpendicular to a surface of the white cyclorama; an image capture position located between the background and the front light source in the longitudinal axis, the image capture position comprising at least one image capture device equipped with an eighty-five millimeter lens, the at least one image capture device further configured with an ISO setting of about three hundred twenty and an f-stop value of about 5.6; an elevated platform positioned between the image capture position and the background in the longitudinal axis, the front light source being directed toward a subject on the elevated platform; a first rear light source aimed at the background and positioned between the elevated platform and the background in the longitudinal axis, the first rear light source positioned below a top surface of the elevated ...
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In an image segmentation system that processes image objects by digital filtration, a digital filter is defined. The digital filter includes a neighborhood operator for processing intensity values of neighborhoods of pixels in a pixel array. A first pixel array is received defining a pixelated image including one or more objects and a background and a second pixel array is received that defines a reference image. The reference image includes at least one object included in the pixelated image in a background. In the reference image, pixels included in the at least one object are distinguished from pixels included in the background by a predetermined amount of contrast. Pixels of the first and second images are compared to determine a merit value; the merit value is used to compute neighborhood operator values; and, the neighborhood operator is applied to images in order to create or enhance contrast between objects and background in the images.
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The Section for Biomedical Image Analysis (SBIA), part of the Center of Biomedical Image Computing and Analytics - CBICA, is devoted to the development of computer-based image analysis methods, and their application to a wide variety of clinical research studies. Image analysis methodologies include functional and structural connectomics, radiomics and radiogenomics, machine learning in imaging, image registration, segmentation, population-based statistical analysis.]
The development of parallel-processing image-analysis codes is generally a challenging task that requires complicated choreography of interprocessor communications. If, however, the image-analysis algorithm is embarrassingly parallel, then the development of a parallel-processing implementation of that algorithm can be a much easier task to accomplish because, by definition, there is little need for communication between the compute processes. I describe the design, implementation, and performance of a parallel-processing image-analysis application, called CRBLASTER, which does cosmic-ray rejection of CCD (charge-coupled device) images using the embarrassingly-parallel L.A.COSMIC algorithm. CRBLASTER is written in C using the high-performance computing industry standard Message Passing Interface (MPI) library. The code has been designed to be used by research scientists who are familiar with C as a parallel-processing computational framework that enables the easy development of ...
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RAPID COLOR VERIFICATION SYSTEM USING DIGITAL IMAGING AND CURVE COMPARISON ALGORITHM - A system for monitoring paint color across regions of a vehicle and for identifying color mismatches and for dynamically determining the acceptability of an identified mismatch is disclosed. The system includes a vehicle image acquisition array of one or more digital cameras for digitally scanning selected regions of the vehicle and an image analyzer connected to the vehicle image acquisition system. The image analyzer is initially programmed with upper and lower standard confidence color curves. The image analyzer includes software programmed with an analysis algorithm to convert an image of one of the scanned regions acquired by the vehicle image acquisition array into a standard image format from which actual individual color curves are extracted and to compare the extracted color curves against the standard confidence color curves to determine whether or not the extracted color curves fall within the upper ...
Prenatal androgens are responsible for sex differences in behaviour and morphology in many species, causing changes in neural structure and function that persist throughout life. Some variation in the expression of behaviour between individuals of the same sex can also be attributed to differences in exposure to prenatal sex hormones. The ratio of the second and fourth digits (2D:4D ratio) is a proposed biomarker for prenatal androgen effects (PAE). Through assessment of 2D:4D ratios, this study aimed to investigate the relationship between inferred PAE and social behaviours in female chacma baboons (Papio ursinus). We validated a new method to measure 2D:4D indirectly using digital photographs and computer-assisted image analysis software. There was a strong correlation between 2D:4D ratio and dominance rank amongst female baboons. Low 2D:4D ratios were associated with high rank, lower submission rates and higher rates of non-contact and contact aggression. This is consistent with the ...
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Volume rendering is a technique for visualizing 3D arrays of sampled data. It has applications in areas such as medical imaging and scientific visualization, but its use has been limited by its high computational expense. Early implementations of volume rendering used brute-force techniques that require on the order of 100 seconds to render typical data sets on a workstation. Algorithms with optimizations that exploit coherence in the data have reduced rendering times to the range of ten seconds but are still not fast enough for interactive visualization applications. In this thesis we present a family of volume rendering algorithms that reduces rendering times to one second. First we present a scanline-order volume rendering algorithm that exploits coherence in both the volume data and the image. We show that scanline-order algorithms are fundamentally more efficient than commonly-used ray casting algorithms because the latter
Purpose: We developed and evaluated the performance of a novel computer-based image analysis system for grading plus disease in retinopathy of prematurity (ROP), and identified the image features, shapes, and sizes that best correlate with expert diagnosis. Methods: A dataset of 77 wide-angle retinal images from infants screened for ROP was collected. A reference standard diagnosis was determined for each image by combining image grading from 3 experts with the clinical diagnosis from ophthalmoscopic examination. Manually segmented images were cropped into a range of shapes and sizes, and a computer algorithm was developed to extract tortuosity and dilation features from arteries and veins. Each feature was fed into our system to identify the set of characteristics that yielded the highest-performing system compared to the reference standard, which we refer to as the i-ROP system. Results: Among the tested crop shapes, sizes, and measured features, point-based measurements of arterial and ...
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The MetaMorph Software suite of products from Molecular Devices has been an integral part of the bioresearch imaging community for more than 25 years and supports a vast array of microscopes, cameras, and precision stages. The extensive suite of software provides acquisition, processing, and analysis features that allow researchers to build custom imaging systems for solving novel experimental problems in cellular imaging.. MetaMorph Microscopy Automation & Image Analysis Software is the industry standard for automated microscope acquisition, device control, and image analysis, bringing microscopists greater understanding of cell morphology, function, and behavior.. • Device Control: MetaMorph Software can be used as a common software platform within a core facility or laboratory minimizing maintenance, training, and support of customers and end-users.. • Analysis: MetaMorph Software provides all the tools needed to perform meaningful analysis of acquired images. Integrated Morphometry ...
The relatively high concentration in this pilot study was to be sure that the DHT receptors would all be blocked. The alcohol and water vehicle used in this pilot study was chosen in order to be certain that any beneficial effects would be from Ethocyn rather than from the vehicle. The tissue was stained with Verhoeffs stain so that the elastin stained black. At the end of the study the slides were randomized so that it was not known which slide was from which patient at which time and then photographed through the microscope with a camera which allowed the images to be stored on a computer. Computer image analysis was then performed to determine the percentage of surface area of each slide which took up the elastic tissue stain. After breaking the code it was found that the average increase in elastic tissue was about 100% as measured by computer image analysis. The findings of this study were statistically significant at a level of p ...
Volume Rendering utilizing Design Equipment Travis Gorkin GPU Programming and Engineering, June 2009 Motivation Volume Rendering Foundation Volumetric Information Optical Model Amassing Comparisons Volume Rendering on the CPU Raymarching Calculation Volume Rendering on Representation Equipment
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This is a multi-part message in MIME format. ------=_NextPart_000_0000_01C5B91F.83FE4110 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi I have been working with ARToolkit for a few years by now and I think it is a terrific tool. However I still dont understand the core of ARToolkit - namely the image analysis. I hope that it will be possible to modify the algorithm so that the user can cover a part of the outer black square and still be able to recognize the marker. It should be possible to do but I dont understand in detail what goes on in the algorithm since there are no comments in the code and the C code seems to have been written to be super efficient rather than easy to read (I hope I do not offend anyone by assuming this). Does anyone have any detailed information about the image analysis algorithm? Alternatively we might have to write a new algorithm from scratch. Do you know any books or other sources that gives a good explanation on how an image ...
TY - JOUR. T1 - A comparison of resampling schemes for estimating model observer performance with small ensembles. AU - Elshahaby, Fatma E.A.. AU - Jha, Abhinav Kumar. AU - Ghaly, Mickel. AU - Frey, Eric. PY - 2017/8/22. Y1 - 2017/8/22. N2 - In objective assessment of image quality, an ensemble of images is used to compute the 1st and 2nd order statistics of the data. Often, only a finite number of images is available, leading to the issue of statistical variability in numerical observer performance. Resampling-based strategies can help overcome this issue. In this paper, we compared different combinations of resampling schemes (the leave-one-out (LOO) and the half-train/half-test (HT/HT)) and model observers (the conventional channelized Hotelling observer (CHO), channelized linear discriminant (CLD) and channelized quadratic discriminant). Observer performance was quantified by the area under the ROC curve (AUC). For a binary classification task and for each observer, the AUC value for an ...
Activities: Computer-Assisted Image Processing, Equipment Design, Software, Computer Systems, Computer-Assisted Surgery, Interventional Magnetic Resonance Imaging, Computer-Assisted Image ...
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0018]According to a fourth aspect of the present invention, there is provided a medical imaging apparatus for displaying first image data having a first resolution together with time-varying second image data having a second resolution which is lower than the first resolution, wherein the time-varying second image data comprises a plurality of second image data sets, with each second image data set representing a different point in time, the apparatus comprising: [0019]a storage device for storing instructions executable by a data processor and for storing first image data and a plurality of second image data sets; [0020]a data processor which can be configured by the instructions stored in the storage device to execute the steps of: [0021]merging and rendering the first image data with a first group of second image data using rendering parameters representing a viewpoint to produce a first group of merged image data, wherein the first group of second image data comprises a plurality of ...
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We investigate the use of linear model observers to predict human performance in a localization ROC (LROC) study. The task is to locate gallium-avid tumors in simulated SPECT images of a digital phantom. Our study is intended to find the optimal strength of smoothing priors incorporating various degrees of anatomical knowledge. Although humans reading the images must perform a search task, our models ignore search by assuming the lesion location is known. We use area under the model ROC curve to predict human area under the LROC curve. We used three models, the non-prewhitening matched filter (NPWMF), the channelized nonprewhitening (CNPW), and the channelized Hotelling observer (CHO). All models have access to noise-free reconstructions, which are used to compute the signal template. The NPWMF model does a poor job of predicting human performance. The CNPW and CHO model do a somewhat better job, but still do not qualitatively capture the human results. None of the models accurately predicts the ...
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Abstract- In recent years, the tumor microenvironment (TME) has been identified as an important factor influencing the growth and metastasis of the tumor. In the TME, different classes of inflammatory cells have been found to exert either a pro- or anti-tumor effect. This has resulted in a growing need to utilize immunohistochemistry to label these leukocyte populations, thereby allowing for the cells to be quantified.
The paper presents a versatile solution facilitating calibration of stereoscopic camera rigs for 3D cinematography. Manual calibration of the rig can easily tak
My current research is focused on developing novel image analysis methods for positron emission tomography (PET) to monitor abnormal changes in functional and pathological hallmarks of Alzheimers disease (AD). It is know that abnormal amyloid accumulation and neurodegeneration occur years or decades before the onset of clinical symptoms. I am particularly interested in developing PET methods for preclinical AD where individuals are classified as cognitively normal by having none or very little cognitive alterations but do not meet the criteria for mild cognitive impairment (MCI). A major challenge of current preclinical AD research, is to construct models of disease progression that estimate the biomarker dynamics directly from real-world experimental data. We are developing image analysis techniques to determine time trajectories for Aβ-PET and FDG-PET and to predict the subjects risk for developing decline in cognition and clinical conversion to MCI ...
A method includes processing projection data with a first reconstruction algorithm and reconstructing first reconstructed volumetric image data, wherein the first reconstructed volumetric image data has a first 3D noise function. The method further includes processing the same projection data with a second different reconstruction algorithm and reconstructing second reconstructed volumetric image data, wherein the second reconstructed volumetric image data has a second 3D noise function, which is different from the first3Dnoise function. The method further includes visually presenting the first or the second reconstructed volumetric image data in a main viewport. The method further includes visually presenting a sub-portion the other of the first or the second reconstructed volumetric image data in a region of interest overlaid over a sub-portion of the main viewport.
Dynamic volume rendering of the beating heart is an important element in cardiac disease diagnosis and therapy planning, providing the clinician with insight into the internal cardiac structure and functional behavior. Most clinical applications tend to focus upon a particular set of organ structures, and in the case of cardiac imaging, it would be helpful to embed anatomical features into the dynamic volume that are of particular importance to an intervention. A uniform transfer function (TF), such as is generally employed in volume rendering, cannot effectively isolate such structures because of the lack of spatial information and the small intensity differences between adjacent tissues. Explicit segmentation is a powerful way to approach this problem, which usually yields a single binary mask volume (MV), where a unit value in a voxel within the MV acts as a tag label representing the anatomical structure of interest (ASOI). These labels are used to determine the TF employed to adjust the ...
Immunocytochemical and morphometric changes of pituitary FSH and LH cells in juvenile (17th day of life) female rats neonatally (4th day of life) treated with five 0.25 mg doses of estradiol dipropionate (EDP) or human chorionic gonadotrophin (14th and 16th day of life) and with the combination of both were studied using rabbit antirat beta-follicle stimulating hormone (FSH) and beta-luteinising hormone (LH) sera and a peroxidase-antiperoxidase (PAP) immunohistochemical procedure. Morphometry and stereology were applied to evaluate the changes in FSH- and LH-producing cells, number and volume densities of the cells and the nuclei. In EDP-treated females significantly increased pituitary mass and the number of chromophobes and PRL cells were observed while all morphometric parameters of FSH/LH cells were decreased in comparison with the corresponding controls. This difference was much more prominent in FSH-beta- than in LH-beta cells. Treatment with hCG led to an increase in the number of FSH and ...
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Purpose : Accurate image-based ophthalmic diagnosis relies on clarity of fundus images. This has important implications for the quality of ophthalmic diagnosis, and for emerging methods such as telemedicine and computer-based image analysis. The purpose of this study is to implement an algorithm for automatically assessing the quality of fundus images, and to evaluate its performance on a set of retinopathy of prematurity (ROP) images compared to expert assessment. Methods : A data set of 30 wide-angle ROP images (RetCam; Natus, Pleasanton, CA) was collected from infants undergoing routine screening examinations. A previously published method by Bartling et. al for automated assessment of digital fundus images was implemented. Briefly, 30 images were resized and converted to grayscale. Each image was broken into 16x16 pixel blocks, and blocks were assessed using metrics for brightness and sharpness. Scores for each block were used to compute an overall image quality score for each image. Images ...
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Try Scion Image (google with those words, and youll find it). Both for PC or Mac, quite versatile and easy to use. ImageJ is also very good and you can also find it free, but I prefer Scion Image... Jose Itabajara da Silva Vaz Junior ,ita at cbiot.ufrgs.br, wrote in message news:mailman.899.1147223625.16885.methods at net.bio.net... , Please, , I need software to quantitate a computer image of a gel eletrophoresis or , western blots. , Are there freeware software? , Thanks for your help , sincerely, , ita , , --------------------------------------------------- , Itabajara da Silva Vaz Junior , Centro de Biotecnologia do RS , Universidade Federal do Rio Grande do Sul , C.P. 15005 Av. Bento Goncalves 9500 , Predio 43421 - Campus do Vale , 91501-970 Porto Alegre RS Brasil , Fone (51) 33166078 Fax (51)3316-73-09 , [00 55 51 3316 7309] , http://www.ufrgs.br/depbiot/201/cbt201.htm , http://www.ufrgs.br/favet/imunovet ...
Abstract-Thickness of the melanoma is the most important factor associated with survival in patients with melanoma. It is most commonly reported as a measurement of depth given in millimeters (mm), and computed by means of pathological examination after a biopsy of the suspected lesion. In order to avoid the use a invasive method in the estimation of the thickness of melanoma before surgery, we propose a computational image analysis system from dermoscopic images. The proposed feature extraction is based on the clinical findings that correlate certain characteristics present in dermoscopic images and tumor depth. Two supervised classification schemes are proposed: a binary classification in which melanomas are classified into thin or thick, and a three-classes scheme (thin, intermediate, and thick). The performance of several nominal classification methods, among them a recent interpretable method combining logistic regression with artificial neural networks (Logistic regression using Initial ...
Summary Despite their amazing success, we believe that computer vision algorithms have only scratched the surface of what can be done in terms of modeling and understanding our world from images. We believe that novel image analysis techniques will be a major enabler and driving force behind next-generation technologies, enhancing everyday life and opening up radically new possibilities. And we believe that the key to achieving this is to develop algorithms for reconstructing and analyzing the 3D structure of our world. In this project, we will focus on three lines of research: A) We will develop algorithms for 3D reconstruction from standard color cameras and from RGB-D cameras. In particular, we will promote real-time-capable direct and dense methods. In contrast to the classical two-stage approach of sparse feature-point based motion estimation and subsequent dense reconstruction, these methods optimally exploit all color information to jointly estimate dense geometry and camera motion. B) We ...
Bardeen, C., O. B. Toon, E. Jensen, M. E. Hervig, C. E. Randall, S. Benze, D. R. Marsh, and A. Merkel (2010), Numerical simulations of the three-dimensional distribution of polar mesospheric clouds and comparisons with Cloud Imaging and Particle Size (CIPS) experiment and the Solar Occultation For Ice Experiment (SOFIE) observations, J. Geophys. Res., 115, D10204, doi:10.1029/2009JD012451 ...
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A three-dimensional image is derived from two-dimensional images. At least one of the two-dimensional images has a predetermined number of pixels. Depth measurements are derived from the two-dimensional images. The number of derived depth measurements is substantially equal to the predetermined number of pixels. The three-dimensional image is derived from the two-dimensional digital images and the depth measurements.
The operation panel 3a of the fundus camera unit 1A will be described. The operation panel 3a is disposed, for example, on a gantry (not shown) of the retinal camera unit 1A.. The operation panel 3a is provided with an operation unit used for an operation instruction for acquiring a two-dimensional image of the surface of the fundus oculi Ef and an operation unit used for an operation instruction for acquiring a tomographic image of the fundus oculi Ef. It has been. By providing such an operation panel 3a, both the operation for acquiring the fundus image Ef ′ and the operation for acquiring the tomographic image can be performed in the same manner as when operating the conventional fundus camera. it can. For example, as shown in FIG. 6, the operation panel 3 a includes a menu switch 301, a split switch 302, a photographing light amount switch 303, an observation light amount switch 304, a chin rest switch 305, a photographing switch 306, a zoom switch 307, and an image changeover switch 308. ...
As with Adobe Photoshop Elements 10, PSE11 has options to Create and Share your photos. Choosing any option in Create, such as Greeting Card or Photo Calendar, opens the Elements Editor for further processing. Sending video clips to Vimeo and sharing photos with Adobe Revel are new to the Share options. Photos can also be uploaded to Flickr or Facebook, or attached to an email.. You may be wondering what will happen to your PSE10 catalog. PSE11 will import it quickly and easily. My PSE10 catalog has over 7400 photos, and took less than two minutes to import. Importing from an iPhoto library takes significantly longer. This is because when importing from an existing catalog the new catalog uses pointers to the photos, whereas creating a new catalog from iPhoto duplicates the photos. So if your iPhoto library is 6GB, for example, your Organizer library will also be 6GB.. Sadly, I ran across the same iPhoto import problem with PSE11 I had with PSE10. At the very end of the import process, PSE11 ...
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Invicros medical image analysis team develops robust algorithms and pipelines to solve complex image science problems. Our team of over fifty medical image processing scientists, including more than twenty PhDs, is responsible for extracting scientific quantitative data in support of Invicros studies from discovery research through late-phase clinical trials.. The medical image analysis team blends cutting edge image science with proven image engineering capabilities to continually create novel algorithms and quantitative image analysis pipelines while also developing those methods into robust, efficient automated tools. Machine learning and deep learning are two powerful tools routinely used to drive these solutions. These methods are coupled with Invicros deep scientific domain knowledge to produce unique, custom solutions to a variety of tasks, spanning therapeutic area and modality.. Contact us ...
Computer-assisted, interactive fundus image processing for macular drusen quantitation. Ophthalmology. 1999 Jun;106(6):1119-25 ... 2001 May;85(5):563-5. 9. Berger JW, Yoken J. Computer-assisted quantitation of choroidal neovascularization for clinical trials ... Grading, image analysis, and stereopsis of digitally compressed fundus images. Retina. 2000;20(3):275-81. 12. Berger JW. ... Jeff was a pioneer of quantitative retinal imaging with a number of publications on image analysis methods for modalities such ...
Information Processing in Medical Imaging. Lecture Notes in Computer Science. 10265. pp. 559-570. doi:10.1007/978-3-319-59050-9 ... Journal of Computer Assisted Tomography. 17 (2): 225-236. doi:10.1097/00004728-199303000-00011. ISSN 0363-8715. PMID 8454749. ... Information Processing in Medical Imaging : Proceedings of the ... Conference. Lecture Notes in Computer Science. 24: 249-259. ... Proceedings of Information Processing in Medical Imaging (IPMI 2005), Number 3565 in Lecture Notes in Computer Science. Lecture ...
Information Processing in Medical Imaging : Proceedings of the ... Conference. Lecture Notes in Computer Science. 24: 249-259. ... Medical Image Computing and Computer-assisted Intervention: MICComputational AnatomyI ... International Conference on Medical ... Information Processing in Medical Imaging : Proceedings of the ... Conference. Lecture Notes in Computer Science. 20: 396-407. ... Proceedings of Information Processing in Medical Imaging (IPMI 2005), Number 3565 in Lecture Notes in Computer Science. Lecture ...
Recent research on computer-assisted methods, which take advantage of digital image processing, pattern recognition, promises ... three-dimensional computer images. Like two-dimensional reconstructions, three-dimensional reconstructions usually require both ... An image of the forensic model of a dog skull found at Cuween Hill Chambered Cairn was published by Sci-News.com on April 22, ... The process detailed below reflects the method presented by Taylor and Angel from their chapter in Craniofacial Identification ...
His research foci include computer vision, biomedical image analysis, and computer assisted interventions. He was also ... He was appointed Full Professor of Biomedical Image Processing in the Departments of Radiology and Medical Informatics at the ... From 2016 to 2019 he was president of the Medical Image Computing and Computer Assisted Interventions Society. In 2017 he was ... "Multiscale vessel enhancement filtering." International conference on medical image computing and computer-assisted ...
... image registration, and other image processing methods with applications to diagnosis, prognosis, and computer-assisted ... Medical Image Analysis is an official publication of The Medical Image Computing and Computer Assisted Interventions Society ... Medical imaging Medical image computing Computer-assisted interventions The MICCAI Society https://www.elsevier.com/journals/ ... The journal publishes papers which contribute to the basic science of analyzing and processing biomedical images acquired ...
Handbook of Pattern Recognition and Image Processing. Academic Press. ISBN 978-0127745602. Russ, J.C. (1990). Computer-Assisted ... CCD digital sensors for capturing images and computers which could process those images, began to revolutionize the process by ... Imaging particle analysis uses the techniques common to image analysis or image processing for the analysis of particles. ... creating a binary image of each particle. Digital image processing techniques are used to perform image analysis operations, ...
"Comparison of 1.5 and 8 tesla high-resolution magnetic resonance imaging of lacunar infarcts". Journal of Computer Assisted ... International Journal of Signal Processing, Image Processing and Pattern Recognition. 6 (1): 49-53. Nolen-Hoeksema S (2014). ... Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the ... The MR imaging provides quantitative, real-time, thermal images of the treated area. This allows the physician to ensure that ...
Various algorithms have been applied in image processing , medicine, three-dimensional statistical data security problems, ... computer tomograph assisted engineering and design, electron microscopy and materials science, including the 3DXRD microscope. ... IEEE transactions on image processing, Vol. 20, Nr. 9, p. 2542-2553, (2011). doi:10.1109/TIP.2011.2131661 W. van Aarle, K J. ... IEEE Transactions on Image Processing, 2012 [3] K. J. Batenburg, and J. Sijbers, "Generic iterative subset algorithms for ...
... in 2013 for contributions to computer assisted surgery and medical image processing. "2013 elevated fellow" (PDF). IEEE Fellows ...
... intended primarily to assist graphics processing units with rendering images at high resolutions. It is different from tiled ... Checkerboard rendering or sparse rendering, also known as checkerboarding for short, is a 3D computer graphics rendering ... Checkboard rendering differs by splitting the image using the checkboard pattern instead of splitting it by alternate line. The ... In some implementations the checkerboard grid will be alternated between frames, with the previous frame's image data being ...
Webcam enabled computer-assisted wargames use computer vision to process firing with images of the camera. In the case of an ... A computer-assisted game can be little more than a collection of rules and notes on computer, or as complete as a computer game ... Computer-assisted gaming attempts to combine the advantages of PC games with those of face-to-face games. In computer-assisted ... Computer-assisted gaming (CAG) and computer-assisted wargaming (CAWG) refer to games which are at least partially computerized ...
... specific imaging systems, and new imaging applications. International Conference on Information Processing in Computer-Assisted ... International Conference on Information Processing in Computer-Assisted Interventions (IPCAI) The Computer Assisted Radiology ... Computer-based technology assists medical professional in processing and acting on complex information . In order to gain an ... ISBN 978-3-319-24601-7. Lalys F, Jannin P. Surgical process modelling: a review. International Journal of Computer Assisted ...
"Rapid three-dimensional MR imaging using the FLASH technique". Journal of Computer Assisted Tomography. 10 (2): 363-368. doi: ... "Rapid NMR imaging of dynamic processes using the FLASH technique". Magnetic Resonance in Medicine. 3 (2): 321-327. doi:10.1002/ ... Echo-planar imaging had been proposed by Mansfield's group in 1977, and the first crude images were shown by Mansfield and Ian ... Fast low angle shot magnetic resonance imaging (FLASH MRI) is a particular sequence of magnetic resonance imaging. It is a ...
Computer-assisted surgery. In computer-assisted surgery pre-operative images such as CT or MRI are registered to intra- ... Image registration is a process that searches for the correct alignment of images. In the simplest case, two images are aligned ... Typically, one image is treated as the target image and the other is treated as a source image; the source image is transformed ... Proceedings of Medical Image Computing and Computer-Assisted Intervention 2004. Lecture Notes in Computer Science. 3216: 655- ...
... followed by the application of computer algorithms which rapidly deliver the processed data as false-colour images of projected ... Examples of computer-assisted developments of the technique are found in the application of "DRIMAPS" from the laboratory of ... two images are produced of every object (one being the "ghost image"). The two images are separated either laterally within the ... These two images can be a nuisance when they overlap, since they can severely affect the accuracy of mass thickness ...
... molecular computers MeSH L01.224.308 - computer-assisted image processing MeSH L01.224.308.189 - data compression MeSH L01.224. ... computer-assisted image interpretation MeSH L01.700.508.100.158.600.680 - computer-assisted radiographic image interpretation ... computer-assisted numerical analysis MeSH L01.224.800 - computer-assisted signal processing MeSH L01.224.800.500 - data ... computer-assisted therapy MeSH L01.700.508.100.710.180 - computer-assisted drug therapy MeSH L01.700.508.100.710.600 - computer ...
The resulting dataset is then processed, in order to eliminate image noise, and to enhance the anatomical contours and also the ... Laboratory Unit for Computer Assisted Surgery is a system used for virtual surgical planning. Starting with 1998, LUCAS was ... Marmulla R, Niederdellmann H: Surgical Planning of Computer Assisted Repositioning Osteotomies, Plast Reconstr Surg 104 (4): ... The next step is to create a virtual 3D model from the gathered collection of 2D images. The bone segment that is to be ...
Image processing and image analysis tend to focus on 2D images, how to transform one image to another, e.g., by pixel-wise ... Assisting humans in identification tasks, e.g., a species identification system; Controlling processes, e.g., an industrial ... Such hardware captures "images" that are then processed often using the same computer vision algorithms used to process visible ... The classical problem in computer vision, image processing, and machine vision is that of determining whether or not the image ...
A few computer programs are available which assist to perform the necessary steps of processing. The most popular programs used ... ISBN 978-3-540-67681-2 S. Hovmöller (1992) "CRISP: crystallographic image processing on a personal computer" Ultramicroscopy ... A new system for crystallographic image processing on personal computers" Micron and Microscopica Acta vol. 22, 141-142. H. ... which processes only a single HREM image. Exit-wave function reconstruction provides an amplitude and phase image of the ( ...
Image processing and image analysis tend to focus on 2D images, how to transform one image to another, e.g., by pixel-wise ... An example application for this technique would be assisting a robot arm in retrieving objects from a conveyor belt in an ... image data is in the form of microscopy images, X-ray images, angiography images, ultrasonic images, and tomography images. An ... Such hardware captures "images" that are then processed often using the same computer vision algorithms used to process visible ...
... the images are processed by a computer and then displayed on a monitor for evaluation by an inspector. The computer can enhance ... the image to assist the inspector in evaluating any indications. Some indeterminate indications may require reinspection, which ... Thermal acoustic imaging (TAI) is a proprietary active thermographic inspection process developed by Pratt and Whitney (P&W) in ... the inspector should forward the images along with the fan blade to a Process Engineer for further evaluation and possible ...
computers, and began employing full-time digital artists to assist with the retouching and photocomposition of Wexler's ... Wexler was among the original artists to adopt digital image editing technology as a tool in the creative process. During 1987 ... ArcLight Cinemas, Hollywood, CA (2008) An exhibition of 33 large-scale pop culture images. ArcLight Cinemas, Sherman Oaks, CA ( ... Farmani Gallery, West Hollywood, CA (2005) A 25-year retrospective featuring one image selected per year from 1980 through 2004 ...
Medical Image Computing and Computer-Assisted Intervention-MICCAI 2012. Lecture Notes in Computer Science. 7510. Springer. pp. ... IEEE Signal Processing Magazine. 31 (1): 45-54. arXiv:1310.5107. Bibcode:2014ISPM...31...45C. doi:10.1109/msp.2013.2279179. ... For example, a facial recognition system may not need to classify any possible image, but only the subset of images that ... The technique has been used for applications including medical imaging, geographical imaging, and object recognition. Manifold ...
One of the disadvantages of PET scanners is their operating cost.[3] A similar imaging process to PET is single-photon emission ... Journal of Computer Assisted Tomography. 8 (2): 306-316. PMID 6608535.. *^ Vardi, Y.; L. A. Shepp; L. Kaufman (1985). "A ... These amyloid imaging probes permit the visualization of amyloid plaques in the brains of Alzheimer's patients and could assist ... Three-dimensional images of tracer concentration within the body are then constructed by computer analysis. In modern PET ...
... of computer algorithms for applications such as computer assisted diagnosis and computer vision Key areas relevant to Imaging ... Digital image acquisition Image processing and enhancement Radiomics Image data compression 3D visualization and multimedia ... Imaging facilities design Imaging vocabularies and ontologies Data mining from medical images databases Transforming the ... TRIP - an initiative between the then Society of Computer Applications in Radiology (SCAR), now known as the Society of Imaging ...
... analyzed with computer-assisted algorithms and reported. ASI system platforms automate the workflow process to reduce human ... Applied Spectral Imaging or ASI is a multinational biomedical company that develops and manufactures microscopy imaging and ... "Applied Spectral Imaging (ASI) - News & Events". Retrieved 1 January 2019. "Applied Spectral Imaging Receives FDA Clearance for ... Some of the original patents are related to spectral imaging systems based on interferometry and other spectral imaging ...
... is a computer technology related to computer vision and image processing that deals with detecting instances ... "Knowledge-assisted semantic video object detection." IEEE Transactions on Circuits and Systems for Video Technology 15.10 (2005 ... including image retrieval and video surveillance. It is widely used in computer vision tasks such as image annotation, activity ... Computer Vision - ECCV 2016. European Conference on Computer Vision. Lecture Notes in Computer Science. 9905. pp. 21-37. arXiv: ...
... the first computer-assisted instructional program and the plasma TV. Today, research thrusts include computer vision, economics ... image and speech processing and thin film electronics. Research at CSL is conducted by more than 100 faculty members spanning ... the first computer-based education system) Flat panel plasma displays Deuterium Method for processing microchips (extends the ...
One of the disadvantages of PET scanners is their operating cost.[3] A similar imaging process to PET is single-photon emission ... Journal of Computer Assisted Tomography. 8 (2): 306-316. PMID 6608535.. *^ Vardi, Y.; L. A. Shepp; L. Kaufman (1985). "A ... These amyloid imaging probes permit the visualization of amyloid plaques in the brains of Alzheimer's patients and could assist ... Three-dimensional images of tracer concentration within the body are then constructed by computer analysis. In modern PET ...
ASTM E2314: Standard Test Method for Determination of Effectiveness of Cleaning Processes for Reusable Medical Instruments ... One example of high-risk devices are those with Embedded software such as pacemakers, and which assist in the conduct of ... Diagnostic equipment includes medical imaging machines, used to aid in diagnosis. Examples are ultrasound and MRI machines, PET ... and a personal computer.[68] These researchers showed they could shut down a combination heart defibrillator and pacemaker and ...
Chemically Assisted Nuclear Reactions (CANR),[79] Lattice Assisted Nuclear Reactions (LANR), Condensed Matter Nuclear Science ( ... Another computer scientist translated an old article in the Swedish technical journal Ny Teknika. Taubes says: "Ny Teknika ... Conventional deuteron fusion is a two-step process,[text 6] in which an unstable high energy intermediary is formed:. D + D → 4 ... from image caption] Virtually every experiment that tried to replicate their claims failed. Electrochemical cold fusion is ...
The exterior holds 300,000 Buddha images, placed on the dome and the terraces.[331][332] Each of the images has the name of the ... The judicial processes against the abbot and the temple since the 1990s have led to much debate regarding the procedures and ... a computer center and a broadcast center for the satellite television channel and radio channel.[326] The construction layout ... assisted by deputy-abbot and vice-president Luang Por Dattajivo. Thus, the foundation is intrinsically connected to the temple ...
Preparation and hybridization process - DNA[edit]. Scheme of the principle of the FISH Experiment to localize a gene in the ... Microfluidics-assisted FISH (MA-FISH) uses a microfluidic flow to increase DNA hybridization efficiency, decreasing expensive ... Targets can be reliably imaged through the application of multiple short singly labeled oligonucleotide probes.[12] The binding ... Q-FISH combines FISH with PNAs and computer software to quantify fluorescence intensity. This technique is used routinely in ...
Both techniques use systematic processes where the therapists assist the client by using musical experiences and connections ... allows relaxation while drawing images like landscapes enhanced by computer generated sounds ... Employing the ides of community, culture, and spirituality have shown to be vital in the process of dealing with grief so using ... For at least 40,000 years, the healing tool was believed to assist in healing "broken bones, muscle tears and illnesses of ...
Computers and mobile technologyEdit. Access technology such as screen readers, screen magnifiers and refreshable Braille ... Such software can assist blind people with orientation and navigation, but it is not a replacement for traditional mobility ... It has been shown that blind echolocation experts use what is normally the "visual" part of their brain to process the echoes.[ ... Sadato, N. (2005). How the blind "see" Braille: lessons from functional magnetic resonance imaging. The Neuroscientist: A ...
The aim is to reduce stress, accelerate normal recovery, and assist in both the cognitive and emotional processing of the ... "Computer Gaming World. p. 42. Retrieved 1 November 2013.. *^ Richard H. Riley (2008). Chapter 38: Society for Simulation in ... processes occurring within the body that would otherwise seem awkward or impossible to understand through static images. A ... process skill, time skills, product skills, behaviour process, behaviour time, and patient effects. When compared with other ...
... revealed that her password-protected computer account shows activity on the home computer at 1:39 p.m., with activity on her ... The process has not been affirmed by a Daubert Test in the courts.[57] Dr. Vass' group also stated there was chloroform in the ... The images were slowly brought together showing that the duct tape could have covered her nose and mouth. Baez stated, "This ... Anthony is not competent to aid and assist in her own defense".[87] The trial resumed on June 27 when the judge announced that ...
The current processes produce wood pellets, cubes, or pucks. The pellet process is most common in Europe, and is typically a ... the typical process is to densify the biomass. This process includes grinding the raw biomass to an appropriate particulate ... Biogas is methane produced by the process of anaerobic digestion of organic material by anaerobes.[24] It can be produced ... Syngas can be used to produce methanol, DME and hydrogen, or converted via the Fischer-Tropsch process to produce a diesel ...
... to a wireless computer system it developed to assist nursing.[88] Hospitals. Four hospitals in Istanbul are named after ... Florence Nightingale's image appeared on the reverse of £10 Series D banknotes issued by the Bank of England from 1975 until ... There was no equipment to process food for the patients. " This frail young woman [...] embraced in her solicitude the sick of ... Nightingale was assisted in Paris by her friend Mary Clarke.[19] They were deployed about 295 nautical miles (546 km; 339 mi) ...
... using functional magnetic resonance imaging. In their research, published in the Proceedings of the National Academy of ... is sensitive to subtle cues such as people being more helpful when there were stylized eyespots instead of a logo on a computer ... Volunteers assist Hurricane victims at the Houston Astrodome, following Hurricane Katrina.. Both indirect reciprocity and ...
Protecting and assisting U.S. citizens living or traveling abroad;. *Assisting U.S. businesses in the international marketplace ... Freedom of Information Act processing performance[edit]. In the latest Center for Effective Government analysis of 15 federal ... This position manages units that handle the department's public communications and seek to burnish the image of the United ... "State Department to launch "Corridor" internal social network - Federal Computer Week". Fcw.com. Retrieved June 16, 2012 ...
"SIGGRAPH Computer Graphics Newsletter. 33 (1): 15-17. doi:10.1145/563666.563671.. *^ Cropper, William H. (2004). Great ... It was remarked in the published account of the lecture that "if the red and green images had been as fully photographed as the ... These difficulties inspired Albert Einstein to formulate the theory of special relativity; in the process Einstein dispensed ... His father assisted him in the task of preparing the necessary references, but died on 2 April at Glenlair before either knew ...
... a situation or process); spec. produce a computer model of (a process). (SOED mid-20th Century usage). If the AC machine were ... In computer the pulses go in and the pulses go out, we can interpret them as text, as images, as sounds etc. The same happens ... Back when there was no assisted locomotion other than that provided by animals had the concept of artificial locomotion been ... Whilst I am writing this, you might say that in the process of making my utterances I am having to predict what I am going to ...
"Images Paediatr Cardiol. 27: 17-81. Archived from the original on 2014-05-22.. ... This type more closely resembles the natural pacing of the heart by assisting the heart in coordinating the function between ... the computer logic for the pacemaker and the output circuitry which delivers the pacing impulse to the electrodes. ... a sensing amplifier which processes the electrical manifestation of naturally occurring heart beats as sensed by the heart ...
Carroll, K. M., Ball, S. A., Martino, S., Nich, C., Babuscio, T. A., Nuro, K. F., and Rounsaville, B. J., Computer-assisted ... Bibliotherapy is the process by which a patient or participant reads fiction, poetry, and other creative with intent to ... Kosslyn, S. M., Image and mind. Cambridge, MA: Harvard University Press, 1980. Kosslyn, S. M. (1987). Seeing and imagining in ... Guided meditation is a process by which one or more participants meditate in response to the guidance provided by a trained ...
This process of delayed evaluation is fundamental in computer algebra. For example, the operator "=" of the equations is also, ... In mathematics and computer science,[1] computer algebra, also called symbolic computation or algebraic computation, is a ... Computer-assisted proof. *Computational algebraic geometry. *Computer algebra system. *Proof checker. *Model checker ... At the beginning of computer algebra, circa 1970, when the long-known algorithms were first put on computers, they turned out ...
Typically used with multiple-user computers running enterprise software. Examples are: transaction processing databases, ... still remain under development include heat-assisted magnetic recording (HAMR),[72][73] microwave-assisted magnetic recording ( ... In the event of disk-platter failures, disassembly and imaging of the disk platters may be required.[114] For logical damage to ... the typical speed of a hard drive in an average desktop computer is 7200 RPM, whereas low-cost desktop computers may use 5900 ...
Journal of Computer Assisted Tomography. 23 (5): 670-7. doi:10.1097/00004728-199909000-00004. PMID 10524843.. ... Imaging of the biliary treeEdit. ERCP image of cholangiocarcinoma, showing common bile duct stricture and dilation of the ... in a process similar to that seen in the development of colon cancer.[42] Chronic inflammation and obstruction of the bile ... While abdominal imaging can be useful in the diagnosis of cholangiocarcinoma, direct imaging of the bile ducts is often ...
By 14, he was receiving merit certificates and academic awards that continued throughout his school career, and he assisted the ... This was produced from scanned and microfilmed images of the original manuscripts by expert archivists of Roja Muthiah Research ... losing his scholarship in the process.[10]:47 In August 1905, Ramanujan ran away from home, heading towards Visakhapatnam, and ... Vasavi College of Engineering named its Department of Computer Science and Information Technology "Ramanujan Block". ...
Further signal processing such as clock recovery from data (CDR) performed by a phase-locked loop may also be applied before ... In addition to serving the purposes of telecommunications, it is used as light guides, for imaging tools, lasers, hydrophones ... This type of communication can transmit voice, video, and telemetry through local area networks, computer networks, or across ... The process of communicating using fiber-optics involves the following basic steps: *creating the optical signal involving the ...
Computer lab. *Crime lab used to process crime scene evidence. *Language laboratory ... Rules exist to minimize the individual's risk, and safety equipment is used to protect the lab users from injury or to assist ... "The Visual Image of Chemistry: Perspectives from the History of Art and Science". HYLE International Journal for Philosophy of ... In some laboratories, such as those commonly used by computer scientists, computers (sometimes supercomputers) are used for ...
The advent of new imaging technologies, including magnetic resonance imaging (MRI) in the 1970s and positron emission ... The process involves inserting the x-ray tube through the anus into the rectum and placing it against the cancerous tissue, ... Computer-controlled x-ray accelerators distribute precise radiation doses to malignant tumors or specific areas within the ... the use of assisted reproductive technologies and micromanipulation techniques might increase this risk.[27] ...
CFP2006 ("SPECfp"), testing floating point performance, with physical simulations, 3D graphics, image processing, computational ... SPEC CPUv6, The CPU Search Program seeks to encourage those outside of SPEC to assist them in locating applications that could ... SPEC benchmarks are widely used to evaluate the performance of computer systems; the test results are published on the SPEC ... Kant, Krishna (1992). Introduction to Computer System Performance Evaluation. New York: McGraw-Hill Inc. pp. 16-17. ISBN 0-07- ...
Computer assisted instruction - Computer Based Learning - Computer Supported Cooperative Learning - Computer-adaptive test - ... Bologna process - Book flood - Book-and-Record set - Borough Road - Brainstorming - Brainwashing - Bridge program - British ... Human memory process - Human Performance Technology - Human Potential Movement - Humanistic education - Human rights education ... INFOCOMP Journal of Computer Science - Information design - Information mapping - Innate behaviour - Inquiry education - ...
... computer-based instruction (CBI), computer-assisted instruction (CAI), and computer-assisted learning (CAL). These terms ... The teacher can add, text, images, tables, links and text formatting, interactive tests, slideshows etc. Moreover, you can ... Software system that serves the delivery of learning content and the organisation of learning processes ... The history of the application of computers to education is filled with broadly descriptive terms such as computer-managed ...
Most browsers, IE and Firefox included, display the alt text in the box where the image would be if images are turned off. I am ... the computer' - actually many computers working in parallel and cross-checking each other, 9 in the 777 'fly-by-wire' system ... A PAPI-assisted visual approach is not a precision approach. - Lfdder (talk) 19:38, 10 July 2013 (UTC). And the ILS was not U/S ... but that is to be done WHILE the evac is in process.. We were NEVER trained to wait until a thorough assessment had been taken ...
Children with CP may also have sensory processing issues.[18]` Skeleton[edit]. For bones to attain their normal shape and size ... Early use of augmentative and alternative communication systems may assist the child in developing spoken language skills.[32] ... Krägeloh-Mann, I; Horber, V (2007). "The role of magnetic resonance imaging in elucidating the pathogenesis of cerebral palsy: ... and communication aids such as computers with attached voice synthesisers.[citation needed] A Cochrane review published in 2004 ...
... and processes; process engineering; quality process improvement and health information technology; computer hardware; software ... Since 2004 radiology image viewing has been added to the ePR, with radiography images from any HA site being available as part ... "The COACH prompting system to assist older adults with dementia through handwashing: an efficacy study". BMC Geriatrics. 8: 28 ... computer medicine, medical electronic data processing, medical automatic data processing, medical information processing, ...
The Wider system (Francisco Soria Melguizo, S.A., Madrid, Spain) is a newly developed computer-assisted image-processing device ... The Wider system is a newly developed computer-assisted image-processing device for both bacterial identification and ... Evaluation of the Wider System, a New Computer-Assisted Image-Processing Device for Bacterial Identification and Susceptibility ... Evaluation of the Wider System, a New Computer-Assisted Image-Processing Device for Bacterial Identification and Susceptibility ...
Diagnostic imaging Imaging systems in medicine Diagnostic Imaging Image Interpretation, Computer-Assisted Image Processing, ... Image Processing and Analysis in Tagged Cardiac MRI; Analysis of Cell Nuclear Features in Fluorescence Microscopy Images; Image ... Provides a complete collection of algorithms in computer processing of medical images * Contains over 60 pages of stunning, ... Computer Processing Methods for Virtual Endoscopy; Fundamentals and Standards of Compression and Communication; Medical Image ...
"Image Processing, Computer-Assisted" by people in UAMS Profiles by year, and whether "Image Processing, Computer-Assisted" was ... Computer-Assisted*Image Processing, Computer-Assisted. *Image Processing, Computer Assisted. *Computer-Assisted Image ... "Image Processing, Computer-Assisted" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, ... Below are the most recent publications written about "Image Processing, Computer-Assisted" by people in Profiles over the past ...
THORACIC IMAGING: PICTORIAL ESSAY * BREAST IMAGING * BREAST IMAGING: CLINICAL IMAGE * TECHNICAL NOTES AND IMAGE PROCESSING: ... ABDOMINAL IMAGING Limits of Couinauds Liver Segment Classification: A Quantitative Computer-Based Three-Dimensional Analysis. ... BREAST IMAGING Diffusion-Weighted Half-Fourier Single-Shot Turbo Spin Echo Imaging in Breast Tumors: Differentiation of ... Thought you might appreciate this item(s) I saw at Journal of Computer Assisted Tomography.. ...
2017 Satellite Workshops CVII-STENT 2017 and LABELS 2017 proceedings volume featuring research in the field of medical imaging. ... Image Processing, Computer Vision, Pattern Recognition, and Graphics. Series Volume. 10552. Copyright. 2017. Publisher. ... Intravascular Imaging and Computer Assisted Stenting, and Large-Scale Annotation of Biomedical Data and Expert Label Synthesis ... Intravascular Imaging and Computer Assisted Stenting, and Large-Scale Annotation of Biomedical Data and Expert Label Synthesis ...
6893 constitutes the refereed proceedings of the 14th International Conference on Medical Image Computing and Computer-Assisted ... Image Processing, Computer Vision, Pattern Recognition, and Graphics. Series Volume. 6891. Copyright. 2011. Publisher. Springer ... Medical Image Computing and Computer-Assisted Intervention - MICCAI 2011. Book Subtitle. 14th International Conference, Toronto ... Medical Image Computing and Computer-Assisted Intervention - MICCAI 2011. 14th International Conference, Toronto, Canada, ...
computer-assisted) diagnosis; Nonlinear; dimensionality reduction; evidence-based medicine; fMRI; image processing; integration ... Functional magnetic resonance imaging (fMRI) provides non-invasive measures of neuronal activity using an endogenous Blood ... kernel methods; least squares; machine learning; method of image charges; neurophysiology; optimization; oscillations; theorema ...
T2-weighted images may prove efficient for measuring cervical spinal cord atrophy in MS, with the added advantage of lesion ... Image Processing, Computer-Assisted * Magnetic Resonance Imaging / methods* * Male * Middle Aged * Multiple Sclerosis / ... Conclusion: T2-weighted images may prove efficient for measuring cervical spinal cord atrophy in MS, with the added advantage ...
Image Processing, Computer-Assisted * Microarray Analysis * Microfluidics* * Microscopy * Reproducibility of Results * ...
Computer-assisted Image Processing. Additional relevant MeSH terms: Orbital Fractures. Maxillofacial Injuries. Facial Injuries ... Volume analysis of CT comparing the two orbits (OsiriX Medical Image Software (Version 3.7.1, www.osirix-viewer.com). ...
Echo-Planar Imaging. *Electromagnetic Fields. *Image Processing, Computer-Assisted. *Magnetic Resonance Imaging ... Multispectral diffusion-weighted imaging near metal implants.. (Koch KM, Bhave S, Gaddipati A, Hargreaves BA, Gui D, Peters R, ... Kaushik SS, Karr R, Runquist M, Marszalkowski C, Sharma A, Rand SD, Maiman D, Koch KM.) J Magn Reson Imaging. 2017 01;45(1):51- ... Peripheral nerve diffusion tensor imaging: Overview, pitfalls, and future directions.. (Jeon T, Fung MM, Koch KM, Tan ET, Sneag ...
... sequentially testing each pixel element along two contiguous outer edges of the image sensor, starting from the initial ... A method and apparatus for processing images received on an image sensor of rectangular configuration bounded by four outer ... Navigational guidance via computer-assisted fluoroscopic imaging. US6477400. Aug 16, 1999. Nov 5, 2002. Sofamor Danek Holdings ... According to the present invention, there is provided a method of processing images received on an image sensor of rectangular ...
An analytical image processing system is used to analyze spots on color electrophoretograms. In one embodiment, the boundary of ... Molecular imaging. US6064754 *. Dec 1, 1997. May 16, 2000. Oxford Glycosciences (Uk) Ltd.. Computer-assisted methods and ... Image forming apparatus. US6278794 *. Feb 8, 2000. Aug 21, 2001. Oxford Glycosciences (Uk) Ltd. Computer-assisted isolation and ... Molecular imaging. US6643391 *. Apr 4, 2002. Nov 4, 2003. Large Scale Proteomics Corporation. Apparatus for computer-assisted ...
Information Processing in Medical Imaging. *Research Software Engineering with Python. *Computer assisted surgery and therapy ... Biomedical Engineering and Medical Imaging (BEMI) or Medical Image Computing (MIC). ... There is an application processing fee for this programme of £90 for online applications and £115 for paper applications. ... computer science, mathematics, or other closely related discipline. Workplace knowledge and expertise are also considered. ...
Image Processing, Computer-Assisted • Integrin alpha Chains • Integrins • Lasers • Mathematical physics • Mathematics • ... We model the zipping process through a phenomenological law that summarizes the complicated processes of the canthus. Our model ... The process of solution has conceptual similarities with the method of the Fourier transform used in the solution of linear ... My interest is the modeling of the closure of the dorsal opening of the drosophila embryo in the process of morphogenesis. The ...
Image Interpretation, Computer-AssistedImage Processing, Computer-Assisted • Industry • Inverse problems • Machine learning ... Signal Processing, Computer-Assisted • Strepsirhini • Swine • Tooth Crown • Tooth Wear • Tupaia • Wavelets (Mathematics) • X- ... Ieee Transactions on Image Processing : a Publication of the Ieee Signal Processing Society, vol. 26 no. 2 (February, 2017), pp ... Ieee Transactions on Image Processing : a Publication of the Ieee Signal Processing Society, vol. 26 no. 1 (January, 2017), pp ...
Image Processing, Computer-Assisted * Magnetic Resonance Imaging* * Male * Rats * Rats, Sprague-Dawley ... Methods: In this study, we used high field magnetic resonance imaging (MRI) to evaluate the left ventricular functional ... Cardiac dysfunction in the diabetic rat: quantitative evaluation using high resolution magnetic resonance imaging Cardiovasc ...
BIOPASS: Image-, Ontology- and Process-Based Assistance for Minimally Invasive Endoscopic Surgery. Sub-project: Ontology-Based ... Project director: Professor Andreas Melzer (Faculty of Medicine; University Hospital, Innovation Center for Computer-Assisted ... At the new Institute for Innovation in Rational Drug Design, Meiler will carefully combine computer-aided processes with ... Project director: Professor Thomas Neumuth (Faculty of Medicine, University Hospital; Innovation Center for Computer-Assisted ...
Medical Image Processing.. *Computer Assisted Diagnosis and Interventions.. *Virtual Surgery.. Hiring :. I am always looking ... Department of Computer Science and Engineering,. University at Buffalo (UB). Director,. Data Intensive Discovery Initiative (DI ... Computer Aided Diagnostics and Interventions Laboratory (CADI). Accelerated Computing Laboratory (ACL) Virtual Surgery at UB ( ... Department of Computer Science. University at Buffalo, SUNY. Buffalo, NY 14260. Ph: 716-645-4740 Fax: 716-645-3464 ...
Computer Assisted Diagnosis and Interventions; Medical Image Processing; Computer Architecture and Embedded Systems; and ... Gokhale obtained his B.E (Computer Engineering) from University of Pune, India, 1989; MS (Computer Science) from Arizona State ... Hons.) degree in Computer Science and Engineering from the Indian Institute of Technology, Kharagpur, in 1986 and a Ph.D. ... Since 2011, he is leading a research project, supported by JST CREST, to explore an effective way of assisting legacy HPC code ...
The image data block stores image data entries for at least one ultrasound imaging beam and the vertex data block stores vertex ... The graphics processing unit accesses the image data entries and vertex entries to render, from back to front or back to front ... and a graphics memory coupled to the graphics processing unit. The graphics memory holds an image data block, a vertex data ... a system interface coupled to the graphics processing unit, ... Computer tomography assisted stereotactic surgery system and ...
The mission of Journal of Computer Assisted Tomography is to showcase the latest clinical and research developments in CT, MR, ... The Identification of Cerebral Volume Changes in Treated Growth Hormone-Deficient Adults Using Serial 3D MR Image Processing. ... Thought you might appreciate this item(s) I saw at Journal of Computer Assisted Tomography.. ... Abdominal Imaging "Bridging Vascular Sign" in the MR Diagnosis of Exophytic Uterine Leiomyoma. Kim, Jong Chul; Kim, Sung Soo; ...
Image Processing, Computer-Assisted*. Sensitivity and Specificity. Solitary Pulmonary Nodule / radiography*. Tomography, X-Ray ... 2889583 - Nonangiographic imaging of the pulmonary arteries: ct and mr.. 12615523 - The radiographic diagnostic value of low ... Thus, the authors are developing automated methods to detect nodules on CT images of the thorax. METHODS: The computerized ... Kurt Rossmann Laboratories for Radiologic Image Research, Department of Radiology, University of Chicago, IL 60637.. ...
Image Processing, Computer-Assisted. Signal Processing, Computer-Assisted / instrumentation*. Ventricular Function, Left / ... Signals and representative image frames at baseline and during ischaemia are stored in the database, which is planned to ... Computer Systems. Coronary Disease / diagnosis*, physiopathology. Databases as Topic / instrumentation*. Echocardiography / ... who underwent both ECG effort stress test and echo or radionuclide diagnostic imaging procedures associated with ...
Keywords : Breast ultrasonography; BI-RADS; Computer-assisted image processing; Computerassisted image interpretation. ... with orthogonal imaging of patients submitted to surgery. Based on the lesions segmentation, the following five morphometric ... seems to be helpful in distinguishing patients who should undergo biopsy from those to be followed-up only with imaging methods ...
computer assisted image processing. Magnetic resonance imaging (MRI) is a truly non-invasive technique which is not associated ... 1997) CT angiography: thoracic vascular imaging with interactive volume rendering technique. J Comput Assist Tomogr 21:110-114. ... Without restrictions in imaging time imposed by the patients breathhold limits, longer imaging sequences can be used. This ... all image pixels are integrated to project a three dimensional dataset as a single image. For this a certain opacity is ...
UNITERMS: Tomography, X-ray computed; Image processing, computer-assisted; Face; Cysts; Neoplasms. ... Herman, Liu7 (1977) developed this technique of image processing, which demanded a long interval for the rendering of images. ... because during the process of image segmentation some of them are disaggregated. This process has the inconvenience of ... which utilizes an appropriate hardware and software to generate 3D images1,2,3,4,6,13. Those images can be processed by means ...
Image processing computer-assisted. Magnetic resonance imaging. Sexology. Transgendered persons. Abstract in English ... Two image sequences were obtained from that exam: (1) T1 weighted images for VBM analysis in compliance with DARTEL protocol; ... Brain morphometry and Diffusion Tensor Imaging of white matter microstructure of male-to-female transsexuals before and during ... MRI-based studies have investigated brain morphometry through voxel based technique (VBM) and diffusion tensor imaging (DTI) to ...
8. Emergence of computer-assisted Imaging & Voice processingImaging Pulled the main - Still images; Causes of doubt - ... "Data Collection" Alternatives 1) TeleSurveillance 3) "Remote Sensing" (e.g. imaging from outer space) for detection of infected ... Dynamic images; & reluctance off the - Colour & Shades of grey. Health/medical • Voice sector Health/Medical Informatics " ... Global/Regional pooling of processing workload;  Global/Regional posting & sharing of routine and ad hoc surveillance results ...
... of Words Expressed by Japanese Sign Language and Generation of Japanese Sign Language Animation using Thermal Image Processing ... Computer-Assisted Spinal Surgery. $0.00. Select options. * Recognition ... Malware and Computer Security Incidents: Handling Guides. $130.00. Select options. * Recent Advances in Artificial Intelligence ... Aggregation of Descriptive Regularization Methods with Hardware or Software Co-Design for Remote Serving Imaging (PDF01). $0.00 ...
  • The question of genetic alterations resulting from assisted reproductive technologies (ART) in humans is examined within the organization of the human genome. (iospress.com)
  • The Centre for Advanced Biomedical Imaging is a multidisciplinary research Centre for biomedical imaging that aims to develop novel imaging techniques to improve health and well-being. (ucl.ac.uk)
  • Thought you might appreciate this item(s) I saw at Journal of Computer Assisted Tomography. (lww.com)
  • Journal of Computer Assisted Tomography. (lww.com)
  • Computerized detection of pulmonary nodules in computed tomography images. (biomedsearch.com)
  • The objective of this study was to evaluate spiral-computed tomography (3D-CT) images of 20 patients presenting with cysts and tumors in the maxillofacial complex, in order to compare the surface and volume techniques of image rendering. (scielo.br)
  • Current resources of computed tomography (CT) allow reconstructing three-dimensional (3D) images that improve the diagnosis and monitoring of treatments in several maxillofacial pathological conditions 1,2,3,4,5,13,14 . (scielo.br)
  • Furthermore, this article is limited to real images (optically formed), as opposed to "synthetic" (computed) images (computed tomography, confocal microscopy, SIM and other super resolution microscopy techniques, etc. (wikipedia.org)
  • Positron emission tomography (PET) using (11)C-labeled metomidate (MTO) has previously been described as a tool for specific adrenocortical imaging. (diva-portal.org)
  • The most popular imaging mode is computed tomography (CT) or the contrast-enhanced CT, which are used for computer aided diagnosis (CAD) [4, 5] and planning and support of computer assisted interven- tions (CAI) of primary and secondary tumors in liver [6-9]. (deepdyve.com)
  • Magnetic resonance imaging" (MRI or MR), also called "nuclear spin tomography", is a modern imaging modality that can produce high-resolution sectional images of the body. (uniklinikum-jena.de)
  • Computed tomography (CT) is a modern computer-assisted X-ray examination. (uniklinikum-jena.de)
  • Computer Assisted Diagnosis and Interventions. (buffalo.edu)
  • Current medical imaging modalities can reveal rich information about structure and function in three dimensions and in vivo for diagnosis, prognosis and the evaluation of treatment. (yale.edu)
  • Magnetic Resonance Imaging and Sonography in the Diagnosis of Placental Invasion. (yale.edu)
  • A61B6/5235 - Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different radiation imaging techniques, e.g. (google.com)
  • these images are of limited clinical utility for diagnosis, treatment planning, and photodocumentation when compared with fundus camera images. (bmj.com)
  • Therefore, our group and others have been exploring the application of image processing methodologies towards increasing the clinical utility of acquired slit lamp biomicroscopic images for diagnosis, treatment planning, and photodocumentation. (bmj.com)
  • To evaluate a machine learning algorithm that allows for computer-aided diagnosis (CAD) of nonadvanced age-related macular degeneration (AMD) by providing an accurate detection and quantification of drusen location, area, and size. (arvojournals.org)
  • Clinically, facial appearance is an important indicator in diagnosing Down syndrome and it paves the way for computer-aided diagnosis based on facial image analysis. (spie.org)
  • Automatic detection of anatomical structures and regions in 3D medical images is important for several computer aided diagnosis tasks. (spie.org)
  • To present a fully automated system that uses digital fundus images to detect retinal vascular abnormalities indicative of sight- or life-threatening conditions. (arvojournals.org)
  • We tested each vessel abnormality detection algorithm with a dataset of 25 fundus images, resulting in an average accuracy of 77% against the retinal specialist's ground truth. (arvojournals.org)
  • While there has been great interest and much effort directed towards analysis, feature extraction, change detection, and image guided treatment based on high quality fundus images, 1-9 computerised analysis of slit lamp fundus biomicroscopic images has received little attention, perhaps in part attributable to the presumed difficulties in extracting signal (fundus features) from noise (other image components and reflections). (bmj.com)
  • Digital fundus images from a Topcon Imagenet camera were modified by in-house computer imaging techniques ( erdas Imagine Software) within a geographical information system (GIS) (Fig 1 ). (bmj.com)
  • The validating criteria for the study came from a small group of ophthalmologists carrying out masked assessment of a series of fundus images (stereo 35 mm slides and digital fundus images) which either contained ARMD at different confidence levels of judgment or which did not contain ARMD. (bmj.com)
  • A total of 87 sample images of the drusen features under analysis were extracted from the postprocessed fundus images, of which 30 were used as test samples for operational accuracy assessments. (bmj.com)
  • He recognized the value of objective analysis of digital fundus images for research and clinical practice. (wikipedia.org)
  • Mosaicking and enhancement of slit lamp biomicroscopic fundus images. (wikipedia.org)
  • Grading, image analysis, and stereopsis of digitally compressed fundus images. (wikipedia.org)
  • This book constitutes the refereed joint proceedings of the 6th Joint International Workshop on Computing and Visualization for Intravascular Imaging and Computer Assisted Stenting, CVII-STENT 2017, and the Second International Workshop on Large-Scale Annotation of Biomedical Data and Expert Label Synthesis, LABELS 2017, held in conjunction with the 20th International Conference on Medical Imaging and Computer-Assisted Intervention, MICCAI 2017, in Québec City, QC, Canada, in September 2017. (springer.com)
  • The first volume includes 86 papers organized in topical sections on robotics, localization and tracking and visualization, planning and image guidance, physical modeling and simulation, motion modeling and compensation, and segmentation and tracking in biological images. (springer.com)
  • Linköping University, Center for Medical Image Science and Visualization, CMIV. (diva-portal.org)
  • Existingimage fidelity metrics, however, fail to fully support importantrequirements from a modern clinical context: supportfor high-dimensional data, visualization awareness, and independencefrom the original data.Methods We propose an image fidelity metric, called thevisual peak signal-to-noise ratio (vPSNR), fulfilling the threemain requirements. (diva-portal.org)
  • One of the chief domains is represented by the biomedical biotechnologies, from instrumentation to monitoring, from simple sensors to integrated systems, including image processing and visualization systems. (iaria.org)
  • These range from simple tracer techniques through thermography, optical visualization, infrared and ultrasound techniques to highly-sophisticated 3-D tomographic imaging modalities such as optical CT, cine-CT, MRI, PET and others. (begellhouse.com)
  • In contrast, image analysis technology has rarely been applied to these systems and is limited to use with certain devices that analyze inhibition zones obtained by disk susceptibility test methods ( 3 , 10 ). (asm.org)
  • Thus, the authors are developing automated methods to detect nodules on CT images of the thorax. (biomedsearch.com)
  • METHODS: The computerized technique uses various computer-vision techniques and a priori information of the morphologic characteristics of pulmonary nodules. (biomedsearch.com)
  • Imaging-documented cardiovascular signal database for assessing methods for ischaemia analysis. (biomedsearch.com)
  • These results indicate that morphometric analysis of breast lesions at ultrasonography seems to be helpful in distinguishing patients who should undergo biopsy from those to be followed-up only with imaging methods. (scielo.br)
  • However, in order to extract measures that are meaningful for scientific or clinical purposes, it is necessary to have quantitative methods of medical image analysis that are robust in the presence of noise, complexity, artifacts, etc. (yale.edu)
  • Dr. Staib is developing methods for the measurement and characterization of structure and function from images using machine learning and model-based approaches. (yale.edu)
  • METHODS Video fundus image sequences of human volunteers were acquired with a video equipped, Nikon NS-1V slit lamp biomicroscope. (bmj.com)
  • Imaging particle analyzers can be subdivided into two distinct types, static and dynamic, based upon the image acquisition methods. (wikipedia.org)
  • While the basic principles are the same, the methods of image acquisition are different in nature, and each has advantages and disadvantages. (wikipedia.org)
  • We describe methods for obtaining a quantitative description of RNA processing at high resolution in budding yeast. (cnrs.fr)
  • Regions of invasive breast cancer were identified and then processed by computer-assisted image analysis methods. (aacrjournals.org)
  • Jeff was a pioneer of quantitative retinal imaging with a number of publications on image analysis methods for modalities such as fluorescein angiography. (wikipedia.org)
  • The invention comprises an integrated skin-mountable multifunction device for use with a computer assisted or image guided surgical system and methods of using the same, wherein the multifunction device includes a patient mountable portion that has at least one position indicating element and at least. (google.ca)
  • Assessment of image analysis methods and computer software used in Tc-99m-MAG3 dynamic renography is important to ensure reliable study results and ultimately the best possible care for patients. (diva-portal.org)
  • Also, to facilitate efficient method development, two methods for creating synthetic images that mimic images acquired from specimen are described. (diva-portal.org)
  • Computer methods and programs in biomedicine - Amsterdam: Elsevier, Bd. (ovgu.de)
  • The image data block stores image data entries for at least one ultrasound imaging beam and the vertex data block stores vertex entries that define rendering shapes. (google.es)
  • The aim of this study was the development of quantitative assessment of prostatic calcifications at prostatic ultrasound examination by the use of an image analyzer. (urotoday.com)
  • Ultrasound images were analyzed by the digital processing software Image J to quantitatively assess the presence of calcifications. (urotoday.com)
  • A new database of cardiovascular signals has recently been developed at the CNR Institute of Clinical Physiology in a study based on patients admitted to the Coronary Care Unit for suspected ischaemic heart disease (IHD), who underwent both ECG effort stress test and echo or radionuclide diagnostic imaging procedures associated with pharmacological test of myocardial ischaemia. (biomedsearch.com)
  • OBJECTIVE To determine the diagnostic accuracy of respiratory gated magnetic resonance imaging (MRI) for the detection of significant coronary artery stenoses evaluated with three dimensional postprocessing software. (bmj.com)
  • The Centre has a long history of developing new techniques for medical imaging (particularly in magnetic resonance imaging), transforming them from a primarily diagnostic modality into an interventional and therapeutic platform. (imperial.ac.uk)
  • Conventional X-rays still represent a cornerstone in diagnostic imaging. (uniklinikum-jena.de)
  • 1 The technologies of digital image analysis and artificial neural networks (ANN) are not new and have been used in the past to provide a more objective basis for a range of medical applications. (bmj.com)
  • Dr. Minoshima is a radiologist specialized in Nuclear Medicine and Molecular Imaging. (utah.edu)
  • He served as the President of the Brain Imaging Council for the Society of Nuclear Medicine and Molecular Imaging (SNMMI) and currently serves as the SNMMI Chair of the Scientific Program Committee, SNMMI Vice President Elect, as well as the Chair of the Molecular Imaging Committee for the Radiological Society of North America (RSNA). (utah.edu)
  • In response to the current paradigm shift and clinical demand in bringing cellular and molecular imaging modalities to an in vivo - in situ setting during surgical intervention, our recent research has also been focussed on novel biophotonics platforms that can be used for real-time tissue characterisation, functional assessment, and intraoperative guidance during minimally invasive surgery. (imperial.ac.uk)
  • Dr. Isaac N. Bankman is the supervisor of a group that specializes on imaging, laser and sensor systems, modeling, algorithms and testing at the Johns Hopkins University Applied Physics Laboratory. (helsinki.fi)
  • Algorithms are being developed to segment fundus imagery from slit lamp biomicroscopic video image sequences in order to improve clinical utility. (bmj.com)
  • CONCLUSIONS Computer vision algorithms allow for real time extraction of fundus imagery from marginal quality, slit lamp fundus biomicroscope image sequences. (bmj.com)
  • In this report, we develop and evaluate algorithms as a first step toward allowing for enhancement, processing, and analysis of slit lamp fundus biomicroscopic images. (bmj.com)
  • Although the actual algorithms for performing digital image processing had been around for some time, it was not until the significant computing power needed to perform these analyses became available at reasonable prices that digital imaging techniques could be brought to bear in the mainstream. (wikipedia.org)
  • The measurements saved for each particle are then used to generate image population statistics, or as inputs to algorithms for filtering and sorting the particles into groups of similar types. (wikipedia.org)
  • If it is a digital camera or a frame grabber is present, the image can now be saved in digital format, and image processing algorithms can be used to isolate particles in the field of view and measure them. (wikipedia.org)
  • The present casuistry included 40 cases, with orthogonal imaging of patients submitted to surgery. (scielo.br)
  • International Journal of Computer Assisted Radiology and Surgery, ISSN 1861-6410, E-ISSN 1861-6429, Vol. 8, no 3, 437-450 p. (diva-portal.org)
  • These two-dimensional image files may be formed into a three-dimensional image of the entire resected tissue, thereby improving the accuracy and ease by which a pathologist may determine if further surgery or radiation therapy, for example, are indicated. (google.com)
  • The main technological focus is on patient-specific modeling and its use in interventions, image-guided and robotic surgery, real-time tracking and imaging. (springer.com)
  • Embodiments of improved systems and processes for cutting knee bones during computer assisted knee surgery are provided, comprising at least one fiducial associated with the guiding device and a tracking functionality capable of tracking a position and orientation of the at least one fiducial. (google.es)
  • This is facilitated by the Centre's strong engineering background in practical imaging and image analysis platform development, as well as advances in minimal access and robotic assisted surgery. (imperial.ac.uk)
  • After image digitization, the Wider system automatically generates the bacterial name and the susceptibility profile, which depend on the analysis of growth and color changes in the identification wells and the interpretation of growth parameters in the susceptibility testing wells, respectively. (asm.org)
  • Computerassisted image interpretation. (scielo.br)
  • Naseri M, Rajabi H, Wang J, Abbasi M, Kalantari F. Simultaneous respiratory motion correction and image reconstruction in 4D-multi pinhole small animal SPECT. (uams.edu)
  • Most pursue advanced image reconstruction and MRI physics, and they collaborate closely with clinical faculty. (utah.edu)
  • The computer reconstruction is a time consuming process including the transportation, handing and management of digital data. (nii.ac.jp)
  • In the process of the integration of the Internet computing and the reconstruction system for the morphological researchers, we noticed metaphysical issues. (nii.ac.jp)
  • The optimized PDTs for both rest and stress conditions are found to be close to the cross points of the left ventricular chamber and myocardium TACs, which may promote individualized PDT for patient data processing and image reconstruction. (elsevier.com)
  • A direct one-stage 3D image reconstruction algorithm, modified for reconstruction of the EPR images from the projections acquired with the spiral magnetic field gradient, was used. (elsevier.com)
  • Non-real time analysis allowed for fundus image segmentation for each frame of the image sequence. (bmj.com)
  • A gray scale thresholding process is used to perform image segmentation, segregating out the particles from the background, creating a binary image of each particle. (wikipedia.org)
  • The CVII-STENT papers feature the state of the art in imaging, treatment, and computer-assisted intervention in the field of endovascular interventions. (springer.com)
  • This book constitutes the proceedings of the Third International Conference on Information Processing in Computer-Assisted Interventions IPCAI 2012, held in Pisa, Italy, on June 27, 2012. (springer.com)
  • The remit of CMIC covers the mathematics, physics, computation and engineering of medical image acquisition, information processing, image analysis and computer assisted interventions. (ucl.ac.uk)
  • Kurt Rossmann Laboratories for Radiologic Image Research, Department of Radiology, University of Chicago, IL 60637. (biomedsearch.com)
  • Satoshi Minoshima, M.D., Ph.D. is Professor and Chair in the Department of Radiology and Imaging Sciences at the University of Utah. (utah.edu)
  • Some Department of Radiology and Imaging Sciences research faculty are designated as UCAIR investigators. (utah.edu)
  • Ed DiBella, PhD, is a professor and associate director of the Utah Center for Advanced Imaging Research (UCAIR) in the Department of Radiology. (utah.edu)
  • Eun-Kee Jeong, PhD is a Professor in the Utah Center for Advanced Imaging Research, the research division of the Department of Radiology. (utah.edu)
  • Dan Kadrmas, PhD, is a professor in the Department of Radiology and Imaging Sciences at the University of Utah, an investigator in the Huntsman Cancer Institute, and a member of the Experimental Therapeutics Program. (utah.edu)
  • Functional magnetic resonance imaging (fMRI) provides non-invasive measures of neuronal activity using an endogenous Blood Oxygenation-Level Dependent (BOLD) contrast. (nih.gov)
  • Dr. Anderson´s lab studies brain networks using functional imaging techniques such as fMRI, diffusion tensor imaging, and magnetoencephalography. (utah.edu)
  • To investigate this issue, we scanned younger and older adults with functional magnetic resonance imaging (fMRI) while performing three different tasks: working memory, visual attention and episodic retrieval. (diva-portal.org)
  • Brain Imaging Behav. (mcw.edu)
  • We scanned 398 healthy young adults (mean age, 23.6 ± 2.2 years) with diffusion tensor imaging, a variation of magnetic resonance imaging sensitive to white matter integrity in the living brain. (edu.au)
  • Their goal is to understand how thought and behaviour arise from brain activity, and how such processes break down in neurological and psychiatric disease. (ucl.ac.uk)
  • The Sainsbury Wellcome Centre brings together world-leading neuroscientists driven by a common scientific goal: to understand how neural circuits in the brain give rise to the fundamental processes underpinning behaviour. (ucl.ac.uk)
  • In a sophisticated process, high-resolution images of the brain are produced. (uniklinikum-jena.de)
  • Structured Dictionary Models and Learning for High Resolution Images , National Science Foundation, 2013/08-2017/07. (duke.edu)
  • Image Processing, Computer-Assisted" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (uams.edu)
  • The Handbook of Medical Image Processing and Analysis is a comprehensive compilation of concepts and techniques used for processing and analyzing medical images after they have been generated or digitized. (helsinki.fi)
  • For those looking to explore advanced concepts and access essential information, this second edition of Handbook of Medical Image Processing and Analysis is an invaluable resource. (helsinki.fi)
  • RESULTS Overall 74% (range 50% to 90%) of the proximal and mid coronary artery segments were visualised with an image quality suitable for further analysis. (bmj.com)
  • Dr. Staib's research centers on techniques for accurate analysis, quantification and characterization of medical images. (yale.edu)
  • After evaluating the images for quality, the system implements the automatic vessel analysis techniques, and detects the vascular abnormalities. (arvojournals.org)
  • Hernández Hoyos M, Orkisz M, Puech P, Mansard-Desbleds C, Douek P, Magnin IE (2002) Computer assisted analysis of 3D MRA images. (springer.com)
  • Biostatistical Analysis and Wavelet Analysis are widely utilized in various fields such as image processing, statistical learning, medical informatics, and so on. (wikicfp.com)
  • The present invention relates to image processing, and in particular to an apparatus and method for image processing for the analysis of histological samples, such as slide sections prepared following the resection of a tumor or other neoplastic lesion. (google.com)
  • Bioinformatic analysis predicts with a high probability that the corresponding rfg8 protein is located in the cytoplasm and is involved putatively in intracellular transport processes. (aacrjournals.org)
  • Custom developed software identified specular reflections based on brightness and colour content, and extracted the illuminated fundus image based on colour image analysis and size constraints. (bmj.com)
  • Live image analysis could be performed. (bmj.com)
  • Flow diagram of image analysis methodology. (bmj.com)
  • The ANN required approximately 10 000 iterations in order to categorise the training samples to within the accepted error margin of 0.01 and, after being analysed by both the expert assessor and the ANN model, the sample outputs were finally compared as shown in Table 1 to assess the accuracy of the computer based analysis system with the clinical standard. (bmj.com)
  • Imaging particle analysis is a technique for making particle measurements using digital imaging, one of the techniques defined by the broader term particle size analysis. (wikipedia.org)
  • Imaging particle analysis uses the techniques common to image analysis or image processing for the analysis of particles. (wikipedia.org)
  • Given the above, the primary method for imaging particle analysis is using optical microscopy. (wikipedia.org)
  • The first dynamic imaging particle analysis system was patented in 1982. (wikipedia.org)
  • The basic process by which imaging particle analysis is carried out is as follows: A digital camera captures an image of the field of view in the optical system. (wikipedia.org)
  • Digital image processing techniques are used to perform image analysis operations, resulting in morphological and grey-scale measurements to be stored for each particle. (wikipedia.org)
  • Computer aided image analysis and machine learning techniques offer a way to obtain highly reproducible image-based classification of ER+ breast cancer. (aacrjournals.org)
  • Unsupervised analysis of image-based features of high resolution digital images of ER+ breast cancer histology leads to natural separation of tumors, with low grade tumors separating from high grade tumors. (aacrjournals.org)
  • Unsupervised analysis of high resolution image-based features can stratify ER+ breast cancers in a fashion that correlates well with a gene-expression based prognostic assay, Oncotype Dx. (aacrjournals.org)
  • These data suggest that tumors with distinct gene-expression profiles also have distinct image-based features that can be measured by computer-aided image analysis and used to build prognostic and predictive assays. (aacrjournals.org)
  • Filtering is a key step in digital image processing and analysis. (dissertations.se)
  • Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computerized Image Analysis and Human-Computer Interaction. (diva-portal.org)
  • Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computerized Image Analysis. (diva-portal.org)
  • The three-volume set LNCS 6891, 6892 and 6893 constitutes the refereed proceedings of the 14th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2011, held in Toronto, Canada, in September 2011. (springer.com)
  • Medical Image Computing and Computer-Assisted Intervention - MICCAI 2014. (etsmtl.ca)
  • Summary of the AAPM task group 248 report: Interoperability assessment for the commissioning of medical imaging acquisition systems. (uams.edu)
  • The technique does not require the acquisition of specialized scans other than high-resolution magnetic resonance images. (usc.edu)
  • Wrapped phase information is processed using a two-wavelength algorithm to extend the range of the optical path delay measurements that can be detected using a single temporal acquisition. (duke.edu)
  • While this significantly speeded up the acquisition of particle measurements, it was still a tedious, labor-intensive process, which not only made it difficult to measure statistically significant particle populations, but also still introduced some degree of human error to the process. (wikipedia.org)
  • Static image acquisition is the most common form. (wikipedia.org)
  • In static image acquisition only one field of view image is captured at a time. (wikipedia.org)
  • However, the technique requires long image acquisition periods, and this limits its use for many in vivo applications where relatively rapid changes occur in the magnitude and distribution of spins. (elsevier.com)
  • Computer simulation revealed an intrinsic difference in migration behavior of the male pronucleus between the pushing and pulling mechanisms. (nih.gov)
  • Publications] Tatsumi H: 'Color Image Processing for Medical and Biological Images with NeXT Computer' Proceedings of the 6th Sapporo International Computer Graphics Symposium. (nii.ac.jp)
  • Bansal, R. Staib, L.H. Dongrong Xu Laine, A.F. Royal, J. Peterson, B.S. Medical Imaging, IEEE Transactions on Publication Date: May 2008 Volume: 27, Issue: 5 page(s): 589-607. (yale.edu)
  • A method and apparatus for processing images received on an image sensor of rectangular configuration bounded by four outer edges and including a plurality of pixel elements arranged in a rectangular matrix includes the following operations: A. locating an initial rectangular-matrix region consisting. (google.com)
  • In this work, we present a national multicentre study of the quantification accuracy in Tc-99m-MAG3 renography, utilizing virtual dynamic scintigraphic data obtained by Monte Carlo-simulated scintillation camera imaging of digital phantoms with time-varying activity distributions. (diva-portal.org)
  • The method is based on a generalized surface-based coregistration algorithm, which accounts for a complete 3-dimensional affine transformation, i.e., rotations, translations, scaling, and shearing, between two volumetric image data sets. (usc.edu)
  • A Genetic Algorithm for Process Discovery Guided by Completeness, Precision and Simplicity. (exlibris.ch)
  • A clustering algorithm forms an image showing the healthy tissue margins, such representation being stored in a file of significantly smaller size than the original photograph. (google.com)
  • Poisson noise was added to the NNF projections and the OS-EM algorithm was applied to generate noisy reconstructed images. (elsevier.com)
  • Those images can be processed by means of different protocols the 3D surface- and the 3D volume-rendering techniques 9 . (scielo.br)
  • 4. The device of claim 3 , wherein the one or more imageable pathways comprise one or more tubes filled with a substance visible to the imaging modality. (google.ca)
  • 7. The device of claim 2 wherein the one or more imagable pathways are made visible to the imaging modality by the addition of a radio-opaque material to the one or more imagable pathways. (google.ca)
  • Magnetic resonance imaging (MRI) is a truly non-invasive technique which is not associated with radiation and is nowadays available for clinical use. (bmj.com)
  • Is there an added value of a hepatobiliary phase with gadoxetate disodium following conventional MRI with an extracellular gadolinium agent in a single imaging session for detection of primary hepatic malignancies? (yale.edu)
  • Temporal Anomaly Detection in Business Processes. (exlibris.ch)
  • The area under the ROC curve (AVC) was calculated from the CHO rating data as an index for image quality in terms of MP defec detection. (elsevier.com)
  • Electron paramagnetic resonance imaging (EPRI) provides direct detection and mapping of free radicals. (elsevier.com)
  • Ultra-fast processing of gigapixel Tissue MicroArray images using high performance computing. (nextbio.com)
  • Publications] Tatsumi H: '" Comfortable Research Environment ': Academy Equipment from Personal Computing to Interpersonal Communication via Computer Network' Proceedings of the Sapporo International Cqomputer Graphics Symposium. (nii.ac.jp)
  • As faster computing resources became available at lowered costs, the task of making measurements from microscope images of particles could now be performed automatically by machine without human intervention, making it possible to measure significantly larger numbers of particles in much less time. (wikipedia.org)
  • In vivo measurements using image processing showed that the actual migration behavior in Caenorhabditis elegans confirms the pulling mechanism. (nih.gov)
  • This dataset consists of 241 signatures collected from in vivo hyperspectral imaging of patients of both genders and Caucasian, Asian and African American ethnicities. (spie.org)
  • In this study, we used high field magnetic resonance imaging (MRI) to evaluate the left ventricular functional characteristics of streptozotocin treated diabetic Sprague-Dawley rats (8 weeks disease duration) in comparison with age/sex matched controls. (nih.gov)
  • In contrast, individuals, who were faster at discriminating fearful faces, engaged visual-attentional regions outside of the face processing network more strongly than individuals with slower reaction times, showed higher white matter integrity in the ILF, as well as reduced functional connectivity with the right amygdala. (bournemouth.ac.uk)
  • The occipital reduction is consistent with the view that sensory processing decline is a common cause in cognitive aging, and the prefrontal increase may reflect functional compensation. (diva-portal.org)
  • This book constitutes the proceedings of the 12th International Conference on Business Process Management, BPM 2014, held in Haif. (exlibris.ch)
  • This book constitutes the proceedings of the 12th International Conference on Business Process Management, BPM 2014, held in Haifa, Israel, in September 2014. (exlibris.ch)
  • Routine clinical pre- and post-operative, post-contrast T1-weighted images of 20 patients with glioblastoma and 20 with lower-grade glioma were collected. (frontiersin.org)
  • He developed a system for evaluating and standardizing images in clinical trials and was a principal investigator for the NEI-funded Complications of AMD Prevention Trial (CAPT). He was an expert on laser tissue interactions and worked on eye tracking laser systems. (wikipedia.org)
  • 9. Berger JW, Yoken J. Computer-assisted quantitation of choroidal neovascularization for clinical trials. (wikipedia.org)
  • It remains the most complete single volume reference for biomedical engineers, researchers, professionals and those working in medical imaging and medical image processing. (helsinki.fi)
  • Medical Image Processing. (buffalo.edu)
  • Computer-based medical systems (automation in medicine, etc. (iaria.org)
  • Information Processing in Medical Imaging. (etsmtl.ca)
  • Medical Imaging, e.g. (cars-int.org)
  • Publications] 柳原 圭雄: 'A Study of Magnification and Smoothing effect on Accurate Computerized Measurement of vessel diameter of coronary cineangiograms using a tele-cine converter' MEDICAL IMAGING TECHNOLOGY. (nii.ac.jp)
  • sensors and cameras, scalable embedded vision systems , computational imaging and deep learning. (ait.ac.at)
  • Finally, beginning roughly in the late 1970s, CCD digital sensors for capturing images and computers which could process those images, began to revolutionize the process by using digital imaging. (wikipedia.org)
  • In this study, we quantified the accuracy of MR image registration to anatomical reference space with linear and non-linear transformations using estimated tumor targets of glioblastoma and lower-grade glioma, and anatomical landmarks at pre- and post-operative time-points using six commonly used registration packages (FSL, SPM5, DARTEL, ANTs, Elastix, and NiftyReg). (frontiersin.org)
  • Her research interests include PET-based tumor imaging and tumor-specific PET probes. (utah.edu)
  • High levels of glucagon-like peptide-1 (GLP-1) receptor expression in human insulinomas and gastrinomas provide an attractive target for imaging, therapy, and intraoperative tumor localization, using receptor-avid radioligands. (snmjournals.org)
  • The high density of GLP-1 receptors in insulinomas as well as the high specific uptake of [Lys 40 (Ahx-DTPA- 111 In)NH 2 ]exendin-4 in the tumor of Rip1Tag2 mice indicate that targeting of GLP-1 receptors in insulinomas may become a useful imaging method to localize insulinomas in patients, either preoperatively or intraoperatively. (snmjournals.org)
  • In particular, they allow tumor imaging and therapy with corresponding radiolabeled peptide hormone analogs. (snmjournals.org)
  • Delineation of the intratemporal facial nerve in a cadaveric specimen on diffusion tensor imaging using a 9.4 T magnetic resonance imaging scanner: a technical note. (uams.edu)
  • Acute White-Matter Abnormalities in Sports-Related Concussion: A Diffusion Tensor Imaging Study from the NCAA-DoD CARE Consortium. (mcw.edu)
  • Peripheral nerve diffusion tensor imaging: Overview, pitfalls, and future directions. (mcw.edu)
  • The aim of this study was to determine if quantitative myocardial perfusion imaging with cardiovascular magnetic resonance (CMR) can accurately track physiological variations in MBF throughout the cardiac cycle. (nih.gov)
  • In this paper, wepropose an inter-examination retargeting framework for optical biopsy,based on an image descriptor designed for matching between endoscopicscenes over significant time intervals. (imperial.ac.uk)
  • 2004 International Conference on Image Processing, 2004. (etsmtl.ca)