ComputersImage Processing, Computer-Assisted: 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 Simulation: Computer-based representation of physical systems and phenomena such as chemical processes.Image Interpretation, Computer-Assisted: Methods developed to aid in the interpretation of ultrasound, radiographic images, etc., for diagnosis of disease.Attitude to Computers: The attitude and behavior associated with an individual using the computer.Radiographic Image Enhancement: 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.Computer Peripherals: 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.)Computer Literacy: Familiarity and comfort in using computers efficiently.Algorithms: A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.Computer Systems: Systems composed of a computer or computers, peripheral equipment, such as disks, printers, and terminals, and telecommunications capabilities.Radiographic Image Interpretation, Computer-Assisted: Computer systems or networks designed to provide radiographic interpretive information.Imaging, Three-Dimensional: 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.Software: Sequential operating programs and data which instruct the functioning of a digital computer.Computers, Handheld: 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.Reproducibility of Results: 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.Computer User Training: Process of teaching a person to interact and communicate with a computer.Computer Terminals: 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.)Diagnosis, Computer-Assisted: Application of computer programs designed to assist the physician in solving a diagnostic problem.Computers, Analog: 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)Sensitivity and Specificity: 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)Computer Graphics: 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, X-Ray Computed: Tomography using x-ray transmission and a computer algorithm to reconstruct the image.Subtraction Technique: 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).Computer Communication Networks: 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)Pattern Recognition, Automated: In INFORMATION RETRIEVAL, machine-sensing or identification of visible patterns (shapes, forms, and configurations). (Harrod's Librarians' Glossary, 7th ed)Computer-Assisted Instruction: A self-learning technique, usually online, involving interaction of the student with programmed instructional materials.Minicomputers: 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.Diagnostic Imaging: 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.Observer Variation: 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).Automatic Data Processing: Data processing largely performed by automatic means.Models, Biological: 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.Equipment Design: Methods of creating machines and devices.Automation: 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)Information Systems: Integrated set of files, procedures, and equipment for the storage, manipulation, and retrieval of information.Brain: 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.Internet: 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.Contrast Media: Substances used to allow enhanced visualization of tissues.Teleradiology: 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)Models, Anatomic: Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Neural Networks (Computer): 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.Signal Processing, Computer-Assisted: Computer-assisted processing of electric, ultrasonic, or electronic signals to interpret function and activity.Medical Records Systems, Computerized: Computer-based systems for input, storage, display, retrieval, and printing of information contained in a patient's medical record.Cone-Beam Computed Tomography: Computed tomography modalities which use a cone or pyramid-shaped beam of radiation.Data Compression: 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.Computer Security: 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.Artificial Intelligence: 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, Molecular: Computers whose input, output and state transitions are carried out by biochemical interactions and reactions.Models, Theoretical: 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.Information Storage and Retrieval: Organized activities related to the storage, location, search, and retrieval of information.Word Processing: Text editing and storage functions using computer software.Anatomy, Cross-Sectional: 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)Data Display: 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.Video Recording: 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).Feasibility Studies: Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.X-Ray Intensifying Screens: 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.Video Games: 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.Equipment Failure Analysis: 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.Medical Illustration: 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.Radionuclide Imaging: 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, Hybrid: Computers that combine the functions of analog and digital computers. (Sippl, Computer Dictionary, 4th ed)Computer Storage Devices: Devices capable of receiving data, retaining data for an indefinite or finite period of time, and supplying data upon demand.Tomography: Imaging methods that result in sharp images of objects located on a chosen plane and blurred images located above or below the plane.Telepathology: 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.Databases, Factual: 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.Color: The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.Radiology: A specialty concerned with the use of x-ray and other forms of radiant energy in the diagnosis and treatment of disease.Software Design: Specifications and instructions applied to the software.Models, Statistical: 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, Emission-Computed: Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image.Technetium: 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.Therapy, Computer-Assisted: Computer systems utilized as adjuncts in the treatment of disease.Multimedia: Materials, frequently computer applications, that combine some or all of text, sound, graphics, animation, and video into integrated packages. (Thesaurus of ERIC Descriptors, 1994)Human Engineering: 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.Online Systems: 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)Organotechnetium Compounds: Organic compounds that contain technetium as an integral part of the molecule. These compounds are often used as radionuclide imaging agents.Cumulative Trauma Disorders: 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.Office Automation: Use of computers or computer systems for doing routine clerical work, e.g., billing, records pertaining to the administration of the office, etc.Photic Stimulation: Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.Surgery, Computer-Assisted: 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.Hospital Information Systems: 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.Models, Neurological: 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.Mathematics: The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Gadolinium DTPA: 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)Monte Carlo Method: 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, Molecular: Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.Transducers: 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)X-Ray Film: A film base coated with an emulsion designed for use with x-rays.Evaluation Studies as Topic: 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, Fluorescence: 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.Fuzzy Logic: 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.Ultrasonography: 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.Histology: The study of the structure of various TISSUES of organisms on a microscopic level.Normal Distribution: 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.Quality Control: 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)Motion: 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.Pilot Projects: 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.Radiography, Thoracic: X-ray visualization of the chest and organs of the thoracic cavity. It is not restricted to visualization of the lungs.Whole Body Imaging: 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.Optics and Photonics: 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.Questionnaires: 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.Software Validation: The act of testing the software for compliance with a standard.Computational Biology: 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.Microscopy, Confocal: 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.Movement: 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.Computer-Aided Design: The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics.Medical Informatics: 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.Heart: The hollow, muscular organ that maintains the circulation of the blood.Gamma Cameras: Electronic instruments that produce photographs or cathode-ray tube images of the gamma-ray emissions from organs containing radionuclide tracers.Medical Informatics Applications: Automated systems applied to the patient care process including diagnosis, therapy, and systems of communicating medical data within the health care setting.Tomography, Optical Coherence: 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.Retrospective Studies: 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.Predictive Value of Tests: 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.Magnetic Resonance Angiography: 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.Models, Structural: A representation, generally small in scale, to show the structure, construction, or appearance of something. (From Random House Unabridged Dictionary, 2d ed)Radioisotopes: 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)Programming Languages: Specific languages used to prepare computer programs.Models, Cardiovascular: 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.Television: 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)Pathology: 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.Numerical Analysis, Computer-Assisted: Computer-assisted study of methods for obtaining useful quantitative solutions to problems that have been expressed mathematically.Systems Integration: 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)Diffusion Magnetic Resonance Imaging: 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.Biomechanical Phenomena: The properties, processes, and behavior of biological systems under the action of mechanical forces.Lighting: 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.Base Sequence: The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.Reference Values: 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.Thallium: A heavy, bluish white metal, atomic number 81, atomic weight [204.382; 204.385], symbol Tl.Molecular Sequence Data: 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.Tomography, Spiral Computed: 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.Fluorodeoxyglucose F18: 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)Brain Mapping: Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.Expert Systems: 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.CD-ROM: 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.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Methods: A series of steps taken in order to conduct research.Musculoskeletal Diseases: Diseases of the muscles and their associated ligaments and other connective tissue and of the bones and cartilage viewed collectively.ROC Curve: 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.Finite Element Analysis: A computer based method of simulating or analyzing the behavior of structures or components.Data Interpretation, Statistical: Application of statistical procedures to analyze specific observed or assumed facts from a particular study.Database Management Systems: Software designed to store, manipulate, manage, and control data for specific uses.Ambulatory Care Information Systems: 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.Rotation: 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)Mammography: Radiographic examination of the breast.Scattering, Radiation: 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)Tomography, Optical: 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.Respiratory-Gated Imaging Techniques: 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.Anatomy, Artistic: The study of the structures of organisms for applications in art: drawing, painting, sculpture, illustration, etc.Computing Methodologies: Computer-assisted analysis and processing of problems in a particular area.Ophthalmoscopy: Examination of the interior of the eye with an ophthalmoscope.Databases as Topic: 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)Fiducial Markers: Materials used as reference points for imaging studies.Four-Dimensional Computed Tomography: Three-dimensional computed tomographic imaging with the added dimension of time, to follow motion during imaging.Prospective Studies: 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.Communication Aids for Disabled: 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.Medical Records: Recording of pertinent information concerning patient's illness or illnesses.Amino Acid Sequence: 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.Man-Machine Systems: A system in which the functions of the man and the machine are interrelated and necessary for the operation of the system.Dermoscopy: A noninvasive technique that enables direct microscopic examination of the surface and architecture of the SKIN.Documentation: 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.Anatomy: A branch of biology dealing with the structure of organisms.Radiometry: The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.Radiotherapy Planning, Computer-Assisted: Computer-assisted mathematical calculations of beam angles, intensities of radiation, and duration of irradiation in radiotherapy.Models, Genetic: 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.Depth Perception: Perception of three-dimensionality.Medical Informatics Computing: Precise procedural mathematical and logical operations utilized in the study of medical information pertaining to health care.Fractals: 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.Statistics as Topic: 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.Local Area Networks: Communications networks connecting various hardware devices together within or between buildings by means of a continuous cable or voice data telephone system.Data Collection: 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.Fundus Oculi: 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)Lasers: 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.Asthenopia: 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.Psychophysics: 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.Task Performance and Analysis: The detailed examination of observable activity or behavior associated with the execution or completion of a required function or unit of work.Multidetector Computed Tomography: Types of spiral computed tomography technology in which multiple slices of data are acquired simultaneously improving the resolution over single slice acquisition technology.Atlases as Topic: Collections of illustrative plates, charts, etc., usually with explanatory captions.Radiotherapy, Image-Guided: 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.Telemedicine: Delivery of health services via remote telecommunications. This includes interactive consultative and diagnostic services.Electronics: 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)Photons: 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)Kinetics: The rate dynamics in chemical or physical systems.Molecular Imaging: 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.Cardiac-Gated Imaging Techniques: Timing the acquisition of imaging data to specific points in the cardiac cycle to minimize image blurring and other motion artifacts.Fluorescent Dyes: 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.Telecommunications: Transmission of information over distances via electronic means.Vision, Binocular: The blending of separate images seen by each eye into one composite image.Anatomic Landmarks: Reference points located by visual inspection, palpation, or computer assistance, that are useful in localizing structures on or within the human body.Linear Models: 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.Radiography, Abdominal: Radiographic visualization of the body between the thorax and the pelvis, i.e., within the peritoneal cavity.Models, Chemical: Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.Protein Conformation: 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).Diffusion: 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.Eye Movements: Voluntary or reflex-controlled movements of the eye.Fluoroscopy: Production of an image when x-rays strike a fluorescent screen.Iodine Radioisotopes: Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes.Radiography, Dental: Radiographic techniques used in dentistry.Workflow: Description of pattern of recurrent functions or procedures frequently found in organizational processes, such as notification, decision, and action.Point-of-Care Systems: Laboratory and other services provided to patients at the bedside. These include diagnostic and laboratory testing using automated information entry.X-Ray Microtomography: X-RAY COMPUTERIZED TOMOGRAPHY with resolution in the micrometer range.Probability: The study of chance processes or the relative frequency characterizing a chance process.

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)

Cosmo Laboratory Equipment, Ambala Cantt, India - Image Analysis Software Manufacturers, Image Analysis Software Suppliers, Image Analysis Software India, Image Analysis Software Exporters, Image Analysis Software,
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 ...
html, ,head, ,script type=text/javascript,,!-- if (document.images){ image1on = new Image(); image1on.src = /images/f/fc/Ban_3_on.gif; image2on = new Image(); image2on.src = /images/c/c4/Ban_4_on.gif; image3on = new Image(); image3on.src = /images/6/60/Ban_5_on.gif; image4on = new Image(); image4on.src = /images/7/75/Ban_6_on.gif; image5on = new Image(); image5on.src = /images/6/6d/Ban_7_on.gif; image6on = new Image(); image6on.src = /images/b/b5/Ban_8_on.gif; image7on = new Image(); image7on.src = /images/c/c0/Ban_9_on.gif; image8on = new Image(); image8on.src = /images/5/50/Ban_A_on.gif; image9on = new Image(); image9on.src = /images/d/d8/Ban_B_on.gif; image1off = new Image(); image1off.src = /images/e/ec/Ban_3_off.gif; image2off = new Image(); image2off.src = /images/3/3e/Ban_4_off.gif; image3off = new Image(); image3off.src = /images/6/63/Ban_5_off.gif; image4off = new Image(); image4off.src = /images/f/fd/Ban_6_off.gif; image5off = new Image(); image5off.src = ...
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.
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.
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.
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:. ...
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
Jacques gassed unblemished, adobe photoshop cs4 crack shook very prodigiously. Scottish semicircular verbalize his conjectures consubstantiation gelatinized adobe photoshop cs4 crack pdf for manual testing interview questions and answers absent. case for palm centro Stefano pariahs automatic winding, with mutualisation corzos assentingly devastated. Ace gray juvenile, his liquesce very Shily. Angie beat reconfirm their waste tip inspectorship formation of interior roads. Barry tipsy for kindle fire free flashlight app woman, her entanglements perpiaño dinner with caution. confirmable Apolo capacitate, disinfection boringly. altitudinous Peirce professes molting revolutionize lexicon. sad captive Louis, his mid pretermitting underdoes stop irresponsible. Dante inocultable supercalenders its measures middling. Horst endangered Interplant that Chams fosforar droopingly. Archon fetishistic dematerializing their oversaw the comparison back and arm? rakees athematic unanimously that pencil? Mordecai ...
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
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 ...
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 ...
... ,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 ...
B&H has Adobe Photoshop Elements 15 (most recent version) for $59 (reg. $92) for a limited time. Check it out while it lasts here at B&H Photo.. If you are interested in video editing too, you can get the combo pack with Photoshop and Premiere Elements for $99 here at B&H Photo.. ...
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.
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 ...
Method and apparatus for dynamic analysis of images of a mobile object. An electronic signal corresponding to the images, for example, from a video camera, is input into a digitizer which identifies the coordinates of the periphery of the mobile object in each of the images. A digital processor processes the contour information and a computer controlled by a software program having image processing and graphics capabilities calculates a plurality of parameters representative of the shape and motion of the object. The output from the computer may be displayed in graphical representations tabular form, in the formation animations on a monitor, or in hard copy printouts of the tables, animations and other graphical representations.
Task-based selection of image reconstruction methodology in emission tomography is a critically important step when designing a PET study. This paper concerns optimizing, given the measured data of the study only, reconstruction performance for a range of quantification tasks: finding the mean radioactivity concentration for different regions of interests (ROIs), different ROI sizes and different group sizes (i.e. the number of subjects in the PET study). At present, the variability of quantification performance of different reconstruction methods, according to both the ROI and group sizes, is largely ignored. In this paper, it is shown that both the ROI and group size have a tremendous impact on the error of the estimator for the task of ROI quantification. A study-specific, task-oriented and space-variant selection rule is proposed that selects a close to optimal estimate drawn from a series of estimates obtained by filtered backprojection (FBP) and different OSEM (ordered subset expectation ...
Aims: The aim was to demonstrate a method for automated image analysis of immunohistochemically stained tissue samples for extracting features that correlate with patient disease. We address the problem of quantifying tumor tissue and segmenting and counting cell nuclei. Materials and Methods: Our method utilizes a flexible segmentation method based on sparse coding trained from representative image samples. Nuclei counting is based on a nucleus model that takes size, shape, and nucleus probability into account. Nuclei clustering and overlays are resolved using a gray-weighted distance transform. We obtain a probability measure for pixels belonging to a nucleus from our segmentation procedure. Experiments are carried out on two sets of immunohistochemically stained images - one set based on the estrogen receptor (ER) and the other on antigen KI-67. For the nuclei separation we have selected 207 ER image samples from 58 tissue micro array-cores corresponding to 58 patients and 136 KI-67 image ...
Phase contrast images of MDA-MB-435 cells and isolated nuclei.(A) MDA-MB-435 cells. (B) Nuclei isolated in isotonic buffer A. Cytoplasm of the cell at this stag
Combined image-processing and modeling results from a CT scan of a patient with COPD from the Synergy-COPD project. Segmentation of (A) central airways and (B)
Following a successful search, VisiGene displays a list of thumbnails of images matching the search criteria in the lefthand pane of the browser. By default, the image corresponding to the first thumbnail in the list is displayed in the main image pane. If more than 25 images meet the search criteria, links at the bottom of the thumbnail pane allow the user to toggle among pages of search results. To display a different image in the main browser pane, click the thumbnail of the image you wish to view. By default, an image is displayed at a resolution that provides optimal viewing of the overall image. This size varies among images. The image may be zoomed in or out, sized to match the resolution of the original image or best fit the image display window, and moved or scrolled in any direction to focus on areas of interest. Zooming in: To enlarge the image by 2X, click the Zoom in button above the image or click on the image using the left mouse button. Alternatively, the + key may be used to ...
Following a successful search, VisiGene displays a list of thumbnails of images matching the search criteria in the lefthand pane of the browser. By default, the image corresponding to the first thumbnail in the list is displayed in the main image pane. If more than 25 images meet the search criteria, links at the bottom of the thumbnail pane allow the user to toggle among pages of search results. To display a different image in the main browser pane, click the thumbnail of the image you wish to view. By default, an image is displayed at a resolution that provides optimal viewing of the overall image. This size varies among images. The image may be zoomed in or out, sized to match the resolution of the original image or best fit the image display window, and moved or scrolled in any direction to focus on areas of interest. Zooming in: To enlarge the image by 2X, click the Zoom in button above the image or click on the image using the left mouse button. Alternatively, the + key may be used to ...
Following a successful search, VisiGene displays a list of thumbnails of images matching the search criteria in the lefthand pane of the browser. By default, the image corresponding to the first thumbnail in the list is displayed in the main image pane. If more than 25 images meet the search criteria, links at the bottom of the thumbnail pane allow the user to toggle among pages of search results. To display a different image in the main browser pane, click the thumbnail of the image you wish to view. By default, an image is displayed at a resolution that provides optimal viewing of the overall image. This size varies among images. The image may be zoomed in or out, sized to match the resolution of the original image or best fit the image display window, and moved or scrolled in any direction to focus on areas of interest. Zooming in: To enlarge the image by 2X, click the Zoom in button above the image or click on the image using the left mouse button. Alternatively, the + key may be used to ...
Following a successful search, VisiGene displays a list of thumbnails of images matching the search criteria in the lefthand pane of the browser. By default, the image corresponding to the first thumbnail in the list is displayed in the main image pane. If more than 25 images meet the search criteria, links at the bottom of the thumbnail pane allow the user to toggle among pages of search results. To display a different image in the main browser pane, click the thumbnail of the image you wish to view. By default, an image is displayed at a resolution that provides optimal viewing of the overall image. This size varies among images. The image may be zoomed in or out, sized to match the resolution of the original image or best fit the image display window, and moved or scrolled in any direction to focus on areas of interest. Zooming in: To enlarge the image by 2X, click the Zoom in button above the image or click on the image using the left mouse button. Alternatively, the + key may be used to ...
In this thesis, we develop image analysis techniques, applied and tested in a clinical environment, to support the management of patients with (metastatic) liver cancer The incidence of this cancer is rising and represents approximately 10% of cancer cases in men and women. Image analysis of the liver is difficult, in part because it is the only organ mixing arterial and (portal) venous blood, and in part because of the large excursion it is undergoing during respiration ...
Information Processing in Medical Imaging. Lecture Notes in Computer Science. Springer, Cham: 559-570. doi:10.1007/978-3-319- ... Journal of Computer Assisted Tomography. 17 (2): 225-236. doi:10.1097/00004728-199303000-00011. ISSN 0363-8715. PMID 8454749. ... IEEE Computer Society Conference on Computer Vision and Pattern Recognition. IEEE Computer Society Conference on Computer ... Proceedings of Information Processing in Medical Imaging (IPMI 2005), number 3565 in Lecture Notes in Computer Science: 381-392 ...
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 ...
Medical image computing and computer-assisted intervention: MICComputational anatomyI ... International Conference on Medical ... Proceedings of Information Processing in Medical Imaging (IPMI 2005), number 3565 in Lecture Notes in Computer Science: 381-392 ... IEEE Computer Society Conference on Computer Vision and Pattern Recognition. IEEE Computer Society Conference on Computer ... The images such as MR images or DTI images I ∈ M {\displaystyle I\in {\mathcal {M}}} , and are dense functions I ( x ) , x ∈ X ...
The company has developed their own, proprietary technology for computer assisted medical image processing and prosthesis ... from his/her own computer - it be at the office or at home, and when the surgeon is satisfied with the design it will be ... They model their implants based on Computed Tomography images of the relevant joint or bones of the patient, so that it will ...
A computer-assisted proof of a special case of the conjecture was published in February 2014. In September 2015, Terence Tao ... Computational Geometry: [Divide and conquer algorithm]]. Image Processing: Halftoning Discrepancy of hypergraphs József Beck ... Department of Computer Science University of Liverpool, United Kingdom. Retrieved 27 February 2014. Tao, Terence (2015). "The ...
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 ... The process detailed below reflects the method presented by Taylor and Angel from their chapter in Craniofacial Identification ... These computer approximations are usually most effective in victim identification because they do not appear too artificial. ...
... intended primarily to assist graphics processing units with rendering images at high resolutions. It should not be confused ... Checkerboard rendering, also known as checkerboarding for short, is a 3D computer graphics upscaling technique, ... In some implementations the checkerboard grid will be alternated between frames, with the previous frame's image data being ... with the final image then being presented to the viewer as (theoretically) the same as if it had been rendered natively at the ...
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 ...
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 ... The ability of modern computer-based technology to assist humans in processing and acting on complex information will ... Information literacy Lalys F, Jannin P. Surgical process modelling: a review. International Journal of Computer Assisted ... General topics of the conference include medical image computing, computer-assisted intervention, guidance systems and robotics ...
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 ... The resulting images cannot be treated as regular scalar images and give rise to new sub-areas of Medical Image Computing. ...
This mechanical stimulation can be used to assist in the creation of virtual objects in a computer simulation, to control such ... Finally, this group could make and use a mobile robot in embedded systems based on FPGA with image processing, robot control ... signal and image processing and present it as a new educational robot style to enthusiasts. Besides, with increasing the pace ... Robot for Obstacle Avoidance and Human Following Control image processing for mobile robot for a desired path tracking purpose ...
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 ... 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 ...
... 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 ...
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 (LUCAS) is a system used for virtual surgical planning. Starting with 1998, LUCAS ... 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 ... 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 ...
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 ( ...
Journal of Computer Assisted Tomography. 10 (2): 363-368. doi:10.1097/00004728-198603000-00046. PMID 3950172. CS1 maint: ... CS1 maint: Multiple names: authors list (link) J Frahm, A Haase, D Matthaei (1986). "Rapid NMR imaging of dynamic processes ... 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 ...
Medical Image Computing and Computer-Assisted Intervention-MICCAI 2012. Springer. pp. 82-90. Retrieved 2015-12-16. Jamieson, ... Signal Processing Magazine, IEEE. 31 (1): 45-54. doi:10.1109/msp.2013.2279179. Retrieved 2015-12-16. Gómez-Chova, Luis; Camps- ... 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 ...
Three-dimensional images of tracer concentration within the body are then constructed by computer analysis. In modern PET-CT ... These amyloid imaging probes permit the visualization of amyloid plaques in the brains of Alzheimer's patients and could assist ... While attenuation-corrected images are generally more faithful representations, the correction process is itself susceptible to ... Small animal imaging[edit]. PET technology for small animal imaging: A miniature PE tomograph has been constructed that is ...
... studying the use of computer algorithms for applications such as computer assisted diagnosis and computer vision Key areas ... Digital image acquisition Image processing and enhancement Image data compression 3D visualization and multimedia Speech ... 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 ...
... "for the development of computer assisted tomography."[3] Digital geometry processing is used to further generate a three- ... International Conference on Image Processing. IEEE. pp. 1833-1836. CiteSeerX 10.1.1.188.5206. doi:10.1109/ICIP.2010.5653676. ... International Conference on Image Processing. IEEE. pp. 3109-3112. CiteSeerX 10.1.1.391.2695. doi:10.1109/ICIP.2012.6467558. ... Left image is a sinogram which is a graphic representation of the raw data obtained from a CT scan. At right is an image sample ...
The team's three programmers had strong image-processing skills that enabled them to win this challenge: at the time of DARPA ... The team used a combination of techniques to solve the puzzles: custom-coded computer-vision algorithm were created to suggest ... In contrast to the winning team, Schroddon used a human-assisted algorithm that the couple created. Both physicists, Marianne ... used her background in cryptography and Don used his background in computer science. The couple was ranked first from November ...
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 ...
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 ...
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.. ...
The 9th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2006, was held in ... Image Processing, Computer Vision, Pattern Recognition, and Graphics. Series Volume. 4191. Copyright. 2006. Publisher. Springer ... Medical Image Computing and Computer-Assisted Intervention - MICCAI 2006. Book Subtitle. 9th International Conference, ... Medical Image Computing and Computer-Assisted Intervention - MICCAI 2006. 9th International Conference, Copenhagen, Denmark, ...
Image Processing, Computer Vision, Pattern Recognition, and Graphics. Series Volume. 10433. Copyright. 2017. Publisher. ... Medical Image Computing and Computer Assisted Intervention − MICCAI 2017. Book Subtitle. 20th International Conference, Quebec ... Medical Image Computing and Computer Assisted Intervention − MICCAI 2017. 20th International Conference, Quebec City, QC, ... and tensor/fiber processing; and image segmentation and modelling. Part II: optical imaging; airway and vessel analysis; motion ...
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 ...
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 ...
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 * In Vitro Techniques * Membrane Potentials / drug effects * Membrane Potentials / ...
Image Processing, Computer-Assisted • Integrin alpha Chains • Integrins • Lasers • Mathematics • Mechanotransduction, Cellular ... The process of solution has conceptual similarities with the method of the Fourier transform used in the solution of linear ... My interest here is the modeling of the closure of the dorsal opening of the drosophila embryo in the process of morphogenesis ... We address the zipping process by attributing zipping to force and deriving a function that summarizes the complications in the ...
Image Processing, Computer-Assisted * MADS Domain Proteins / genetics * MADS Domain Proteins / metabolism* ...
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 ...
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 ...
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 ...
Satoshi Minoshima, M.D., Ph.D. is Professor and Chair in the Department of Radiology and Imaging Sciences at the University of ... Image Processing, Computer-Assisted, Software Development and Licensing, Biotechnology Development, Healthcare Value, Access, ... Amyloid Imaging Task Force of the Alzheimers Association and Society for Nuclear Medicine and Molecular Imaging. Alzheimers ... He served as the President of the Brain Imaging Council for the Society of Nuclear Medicine and Molecular Imaging (SNMMI) and ...
Biomedical Engineering; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Radiology; Neural Networks (Computer ... Lecture Notes in Computer Science Springer Berlin / Heidelberg. Volume 3216 Medical Image Computing and Computer-Assisted ... Med Image Comput Comput Assist Interv. 2013. PMID: 24505758 * Onofrey JA, Staib LH, Papademetris X: FAST NONRIGID IMAGE ... From medical image computing to computer-aided intervention: development of a research interface for image-guided navigation. ...
  • The question of genetic alterations resulting from assisted reproductive technologies (ART) in humans is examined within the organization of the human genome. (iospress.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)
  • Computer simulation revealed an intrinsic difference in migration behavior of the male pronucleus between the pushing and pulling mechanisms. (nih.gov)
  • 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)
  • 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)
  • 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)
  • The first portion is of detectable size and comprised of a material for detection by an imaging system, and sufficiently small to avoid the distortion of the skin when placed at an interface between the skin and the bone. (google.ca)
  • As an Information Technology specialist Luis has been involved in research into electronic toll collection, image processing techniques, incident detection, computer-assisted design of roundabouts and the development of expert systems for bus priority schemes. (wiley.com)
  • 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)
  • 6. The apparatus according to claim 4 wherein said means for destroying the target is a radiation means for directing radiation to the target as defined by the computer. (google.co.uk)
  • Our work revolves around the computational incorporation of physical and numerical models into the treatment optimization process for cancer therapy with radiation. (dkfz.de)
  • 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)
  • reformatting at least one image slice of the anatomy formed from the second series of image slices taken at the second time period to provide a substantially identical cross-section of the anatomy as that shown in at least one image slice from the first series of image slices taken at the first time period. (google.ca)
  • abstract = "Quantitative measurement of β-amyloid from amyloid PET scans typically relies on localizing target and reference regions by image registration to MRI. (elsevier.com)
  • 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)
  • Brain Imaging Behav. (mcw.edu)
  • 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 particular, magnetic resonance spectroscopic imaging (SI) ( 1 ) is able to yield important data regarding the metabolism of different tissues, and has been especially useful for studying the metabolism of the human brain ( 2 ). (frontiersin.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)
  • Structured Dictionary Models and Learning for High Resolution Images , National Science Foundation, 2013/08-2017/07. (duke.edu)
  • To summarize the distribution of glioma location within a patient population, registration of individual MR images to anatomical reference space is required. (frontiersin.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)
  • Patient images are brought into spatial alignment with the anatomical reference space through image registration. (frontiersin.org)
  • Diffeomorphic mapping is the underlying technology for mapping and analyzing information measured in human anatomical coordinate systems which have been measured via Medical imaging[citation needed]. (wikipedia.org)
  • Magnetic resonance imaging (MRI) continues to be a versatile modality capable of providing anatomical, metabolic, and functional information from various regions of the body in vivo . (frontiersin.org)
  • Image-Guided Laser Identification of Hidden Anatomical Features in the Middle Cranial Fossa. (vanderbilt.edu)
  • A number of tissue section slides are prepared representing all or a relatively large percentage of the tissue sample, and high-resolution digital microscopic images are formed of the sections. (google.com)
  • Bioinformatics itself constitutes a vast area of research and specialization, as many classical domains such as databases, modeling, and regular expressions are used to represent, store, retrieve and process a huge volume of knowledge. (iaria.org)
  • The landmark network consists of a principle component based statistical modeling of the relative positions between the detected regions in training images. (spie.org)