• Objective: To conduct a critical analysis on the use of Cone-Beam Computed Tomography (CBCT) scanner at Bauru School of Dentistry (USP/Brazil) and the indications of this imaging technique. (bvsalud.org)
  • efX-SIM is North Star Imaging's newest software technology for industrial Digital Radiography & Computed Tomography X-ray imaging. (ndt.org)
  • North Star Imaging ranks among the most sophisticated global resource for Turn-Key industrial 2D & 3D Digital Radiography & Computed Tomography (CT) X-ray equipment and Inspection Services. (ndt.org)
  • A routine computed tomography (CT) scan through the midfoot is suggested to visualize any bony injury to the plantar bony structures. (medscape.com)
  • SINGLE-PHOTON EMISSION-COMPUTED TOMOGRAPHY is closely related to positron emission tomography , but uses isotopes with longer half-lives and resolution is lower. (lookformedical.com)
  • We reviewed the clinical utility of perfusion (Q)-single-photon emission computed tomography (SPECT)/CT for diagnosing pulmonary embolus (PE) in patients hospitalized with severe acute respiratory syndrome coronavirus 2 (SARS-CoV2). (nih.gov)
  • Ptychographic X-ray computed tomography is a quantitative three-dimensional imaging technique offered to users of multiple synchrotron radiation sources. (lu.se)
  • efX-Sim simulates standard North Star Imaging DR and CT systems which enables X-ray equipment operators to develop techniques and motion programs without having to use a physical X-ray system. (ndt.org)
  • X-ray CT is a powerful technique that allows non-destructive imaging of batteries. (rigaku.com)
  • The high-performance ROFEX ( RO ssendorf F ast E lectron beam X -ray tomography)imaging technique has been developed at Helmholtz-Zentrum Dresden-Rossendorf for the noninvasive investigation of dynamic processes. (hzdr.de)
  • Spine X-ray and computed tomography are widely used medical imaging techniques based on radiology, which enables healthcare providers to obtain clear images of internal organs of patients. (emergenresearch.com)
  • Rapid development in medical centers in rural and remote regions, as well as launch of CT scanners with higher imaging intelligence that enables healthcare providers to make faster medical decisions, are some other factors expected to increase usage of spine X-rays and computed tomography. (emergenresearch.com)
  • Three dimensional structures and semi-quantitative mineral distributions were evaluated using X-ray Computed Tomography (XCT) and this was augmented with textural, mineralogical and chemical imaging using Scanning Electron Microscopy (SEM) and optical microscopy as well as fire assay. (sun.ac.za)
  • Micro computed tomography is X-ray imaging in 3D, by the same method used in hospital CT scans, but on a small scale with massively increased resolution. (accela.eu)
  • This continuing education course gives the imaging professional a better understanding of the physical principles of Computed Tomography (CT). (xrayce.com)
  • The Apex-XCT was designed to address a well-known problem in 3D x-ray imaging approaches in which the required acquisition time exponentially increases with sample diameter. (axt.com.au)
  • Apex XCT eliminates many of the imaging artefacts that affect operation of conventional 3D X-ray systems, such as beam hardening, streaking/curtaining, photon starvation, and metal artifacts. (axt.com.au)
  • It is part of Empa's Center for X-ray Analytics "Low Energy X-ray Imaging"-group. (empa.ch)
  • Similar to a hospital CAT scanning system, Micro Computed Tomography (Micro-CT) is a non-destructive 3D imaging technique (4-D with time-based measurements) that uses a highly energetic X-Ray beam to create a series of 2D projections, whose greyscales vary with the volume's internal density and atomic number variations. (surfacesciencewestern.com)
  • X-ray tomography is capable of imaging the interior of objects in three dimensions non-invasively, with applications in biomedical imaging, materials science, electronic inspection, and other fields. (sandia.gov)
  • The advantages of using a physics-assisted learned prior in X-ray tomography may further enable low-photon nanoscale imaging. (sandia.gov)
  • Computed tomography (CT) is a type of imaging. (medlineplus.gov)
  • Nanoprobes Functionalized with Polyacrilic Acid for X-Ray Computed Tomography and NIR Luminescent Imaging. (bvsalud.org)
  • Bimodal Nd-Doped LuVO 4 Nanoprobes Functionalized with Polyacrilic Acid for X-Ray Computed Tomography and NIR Luminescent Imaging. (bvsalud.org)
  • Computed tomography (CT scan or CAT scan) is a noninvasive diagnostic imaging procedure that uses a combination of X-rays and computer technology to produce horizontal, or axial, images (often called slices) of the body. (hopkinsmedicine.org)
  • Lung, Pleura, Pneumothorax, Thoracotomy, Trauma, Penetrating, Imaging INTRODUCTION The added diagnostic value of computed tomography (CT) over chest X-ray (CXR) in patients with blunt trauma to the chest has been extensively verified [1, 2]. (deepdyve.com)
  • Radiocontrast agents are a type of medical contrast medium (dye) used to improve the visibility of internal bodily structures in imaging techniques such as computed tomography (CT) or X-ray imaging. (medscape.com)
  • Several methods exist for determining BSP's including cadaver-based studies, magnetic resonance imaging, computed tomography, and measurements based on bony landmarks, however these methods have some issues as far as cost, time required, and high doses of radiation. (cdc.gov)
  • Our major research fields are radiation therapy (RT), magnetic resonance imaging (MRI), experimental x-ray imaging (XRI) and nuclear medicine (NM). (lu.se)
  • XRI research is focused on new preclinical imaging modalities to improve image contrast through dark-field and phase-contrast imaging using synchrotron radiation (in collaboration with MAX IV) and an in-house micro-focus x-ray tube. (lu.se)
  • X-ray diffraction computed tomography is an experimental technique that combines X-ray diffraction with the computed tomography data acquisition approach. (wikipedia.org)
  • X-ray diffraction (XRD) computed tomography (CT) was first introduced in 1987 by Harding et al. (wikipedia.org)
  • X-ray diffraction computed tomography can be divided into two main categories depending on how the XRD data are being treated, specifically the XRD data can be treated either as powder diffraction or single crystal diffraction data and this depends on the sample properties. (wikipedia.org)
  • There exist several variations of this approach including 3DXRD, X-ray diffraction contrast tomography (DCT) and high energy X-ray diffraction microscopy (HEDM) X-ray diffraction computed tomography, often abbreviated as XRD-CT, typically refers to the technique invented by Harding et al. (wikipedia.org)
  • For this reason, it has also been mentioned as powder diffraction computed tomography and diffraction scattering computed tomography (DSCT), however they both refer to the same method. (wikipedia.org)
  • it is possible to remove or suppress these artefacts by applying filters during the azimuthal integration of the raw 2D diffraction patterns The data can be corrected for self-absorption artefacts using an X-ray absorption-contrast CT scan of the same sample. (wikipedia.org)
  • Its dependence on the coherent fraction of the available X-ray beam makes it perfectly suited to diffraction-limited storage rings. (lu.se)
  • X-ray computed tomography (CT) has emerged as innovative measuring technique for dimensional metrology in industry over the last years. (phddata.org)
  • Industrial X-ray scanning is often used for R&D, Failure Analysis, Quality Control, Internal Measurements, High-Speed 3D Scanning, 3D Metrology, High Energy Scanning & more. (ndt.org)
  • using a laboratory diffractometer and a monochromatic X-ray pencil beam. (wikipedia.org)
  • The latter can be performed using also a letterbox, cone and parallel X-ray beam and yields 2D or 3D images corresponding to maps of the crystallites or "grains" present in the sample and their properties, such as stress or strain. (wikipedia.org)
  • It is illuminated with a monochromatic finely collimated or focused "pencil" X-ray beam. (wikipedia.org)
  • efX-SIM uses a sophisticated X-ray algorithm that simulates how a polychromatic x-ray beam interacts with parts, alloys, and even multiple materials at once. (ndt.org)
  • 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. (lookformedical.com)
  • Computed tomography modalities which use a cone or pyramid-shaped beam of radiation. (lookformedical.com)
  • In computed tomography, the X-ray beam moves in a circle around the body. (hopkinsmedicine.org)
  • This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography , where data is obtained and computed from individual sequential exposures. (lookformedical.com)
  • The X-ray attenuation capacity of the optimum nanophosphor has been found to be higher than that of a commercial X-ray computed tomography contrast agent . (bvsalud.org)
  • The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image. (lookformedical.com)
  • Furthermore, a highly sensitive, photon counting wide field of view small pitch X-ray detector concept will be included. (europa.eu)
  • Investigation of quad-energy high-rate photon counting for X-ray computed tomography using a cadmium telluride detector. (americanelements.com)
  • To obtain four kinds of tomograms at four different X-ray energy ranges simultaneously, we have constructed a quad-energy (QE) X-ray photon counter with a cadmium telluride (CdTe) detector and four sets of comparators and microcomputers (MCs). (americanelements.com)
  • X-ray photons are detected using the CdTe detector, and the event pulses produced using amplifiers are sent to four comparators simultaneously to regulate four threshold energies of 20, 33, 50 and 65keV. (americanelements.com)
  • Contrary to conventional tomography systems, the ROFEX systems do not achieve this by mechanical rotation of the object or source-detector-compound. (hzdr.de)
  • One additional advantage of using masks is that the spatial resolution becomes independent from x-ray focal spot and detector pixel size, and is determined purely by the size of the apertures in the masks. (next-generation-x-ray-imaging.com)
  • The digital X-Ray detector is a "XRD 1621 CN3 ES" from Perkin Elmer, based on a 16'' amorphous silicon sensor operating as a two-dimensional photodiode array. (empa.ch)
  • Computed tomography requires radiographic projections from different angles. (hzdr.de)
  • In this webinar, we will discuss important factors to consider when using X-ray CT methods to inspect batteries. (rigaku.com)
  • Our phase methods use apertured masks to make x-ray systems sensitive to phase effects. (next-generation-x-ray-imaging.com)
  • One of these methods is the industrial micro X-ray computed tomography (CT). (cas.cz)
  • The project addresses the limitations of conventional techniques using 3D X-ray computed tomography, which allows for non destructive and fully three dimensional characterizations of specimens. (europa.eu)
  • A state-of-the-art 25-watt 30-160 kVp nanofocus sealed tube X-ray source combines highest power and spatial resolution with maintenance-free operation. (axt.com.au)
  • 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. (lookformedical.com)
  • Cerebral computed tomography : a text-atlas / Leon Weisberg, Charles Nice, Myron Katz. (who.int)
  • En revanche, les patients de moins de cinq ans et ceux avec un diagnostic de cancer provisoire posé initialement bénéficiaient du délai total médian le plus court. (who.int)
  • Nous suggérons de mettre en place des programmes de formation médicale continue, d'améliorer l'accès aux services de diagnostic, et de faciliter l'orientation-recours de façon à donner la priorité aux patients suspects de cancer et ainsi raccourcir le délai de diagnostic. (who.int)
  • Dual energy x-ray absorptiometry (DXA) is a validated method of determining BSP's in vivo that avoids these common problems. (cdc.gov)
  • The reconstructed data can also be seen as a stack of 2D square images, where each image corresponds to an X-ray scattering angle. (wikipedia.org)
  • Furthermore, parameters characterizing the analyzed process, such as interfacial area of a turbulent gas-liquid flow, can be extracted from the gained data from both tomography planes. (hzdr.de)
  • A framework to generate simulated X-ray computed tomography (XCT) data of ground truth (denoted here as "GT") flaws was developed for the evaluation of flaw detection algorithms using image comparison metrics. (asme.org)
  • Types of spiral computed tomography technology in which multiple slices of data are acquired simultaneously improving the resolution over single slice acquisition technology. (lookformedical.com)
  • We applied X-ray computed microtomography (CT) to obtain high-resolution data ( Δ x =50 µ m) of the composition of a 164 cm long permafrost core drilled in a Yedoma upland in north-eastern Siberia. (copernicus.org)
  • Computed Tomography X-Ray System, Model uCT 760, Rx, CE, GTIN: 06971576831043 - Product Usage: ntended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission data taken at different angles and planes and indicated for the whole body (including head, neck, vascular). (fda.gov)
  • This produces several thousand 2D X-ray images, from which the volume data are calculated numerically. (xray-service.at)
  • Our empirical equation can be applied for X-ray CT data and also compared with the traditional experimental data by Ridgway and Tarbuck (1966). (isipt.org)
  • The X-ray information is sent to a computer that interprets the X-ray data and displays it in a two-dimensional (2D) form on a monitor. (hopkinsmedicine.org)
  • OBJECTIVE: To assess the relationship between proximal femoral cortical bone thickness and radiological hip osteoarthritis using quantitative 3D analysis of clinical computed tomography (CT) data. (cam.ac.uk)
  • Quantitative 3D analysis of bone in hip osteoarthritis using clinical computed tomography. (cam.ac.uk)
  • Our results indicate that infants with CF have thickened airway walls, narrowed airway lumens, and air trapping, when assessed by high-resolution computed tomography, and measurements of airway structure correlated with airway function. (nih.gov)
  • Asia Pacific is expected to register a rapid revenue growth rate in the spine X-ray and computed tomography market over the forecast period due to increasing adoption of radiology devices in the diagnosis of patients in the region. (emergenresearch.com)
  • Spine X-ray and computed tomography are widely used for diagnosis of spinal tumors, fractures, or infections, due to their properties of generating images of internal organs that are generally inaccessible. (emergenresearch.com)
  • Increasing cases of spinal disorders and spinal injuries requiring accurate diagnosis and quick treatment have increased adoption of spine X-rays and computed tomography devices and is expected to further drive market revenue growth between 2022 and 2030. (emergenresearch.com)
  • Enhanced visualization of breast cancer in X-ray computed tomography was achieved by using Bi 2 S 3 nanoparticles of 10 nm diameter modified to display a tumor targeting peptide (LyP-1, CGNKRTRGC). (northwestern.edu)
  • La présente étude transversale a été menée auprès de 138 enfants atteints de cancer et traités dans l'Unité d'oncologie pédiatrique du Centre d'oncologie de l'Université de Mansoura, en Égypte. (who.int)
  • In order to determine axial velocities of structures within the object of investigation the ROFEX systems comprise a second tomography plane, which is driven intermittently to the first one, if required. (hzdr.de)
  • The micro tomography setup (uCT) allows non-destructive 3-dimensional sample inspections. (empa.ch)
  • This paper presents an overview of experience in using the industrial micro X-ray computed tomography during research activities at the Institute of Geonics of the CAS. (cas.cz)
  • The distribution of a local void fraction near the container wall in a particle packed bed is measured using X-ray micro computed tomography. (isipt.org)
  • Stereo images of wood samples before and after the fire retardant treatment were captured using micro-focus X-ray computed tomography. (ncsu.edu)
  • In order to facilitate X-ray computed tomography at the nanometer scale, NanoXCT comprises a novel concept of an ultra-bright X-ray source in combination with a high precision focusing and emission system. (europa.eu)
  • NanoXCT links the activities of 11 partners from 7 European countries including 5 SMEs to design, develop and implement a compact X-ray computed tomography system for non destructive characterization of nano materials and components. (europa.eu)
  • Sigray's Apex-XCT™ is a revolutionary 3D X-ray computed tomography (XCT) system optimised for flat samples. (axt.com.au)
  • Sigray's Apex-XCT™ is a revolutionary 3D x-ray computed tomography (XCT) system optimised for flat samples, such as for failure analysis of advanced packages, printed circuit boards (PCBs), cell phones, pouch cell batteries, and wafers. (axt.com.au)
  • Tomography of walnuts( Video1 , Video2 ) and peperoni as examples for dynamic quality control of agricultural products. (hzdr.de)
  • Results of search for 'su:{Tomography, X-ray computed. (who.int)
  • X-ray computed tomography: from basic principles to applications. (elsevierpure.com)
  • These findings suggest that X-ray computed tomography can be potentially used to predict the chemical content of fire retardant-treated wood. (ncsu.edu)
  • Spine X-ray and computed tomography operate on the principle of emitting X-radiations that pass through a patient's body and produce an image. (emergenresearch.com)
  • Tomography using x-ray transmission and a computer algorithm to reconstruct the image. (lookformedical.com)
  • Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image. (lookformedical.com)
  • Image brightness values, indicating concentration, were calculated using binarized images sliced from the X-ray images. (ncsu.edu)
  • It is performed with an electron microscope fitted with an x-ray spectrometer, in scanning or transmission mode. (lookformedical.com)
  • Did you know X-ray computed tomography (CT) can reveal structural deformities and defects and inspect for proper alignment of electrodes, separators, and electrolytes non-destructively? (rigaku.com)
  • In addition, we measure objects three-dimensionally with 3D computed tomography, allowing you to immediately detect distances and possible defects in components. (xray-service.at)
  • X-ray computed tomography (XCT) can be used to identify lithologies and deformation structures within geological core, with the potential for the identification processes to be applied automatically. (frontiersin.org)
  • X-ray scanning allows users to view & inspect the external & internal structures of a part without opening or destroying it. (ndt.org)
  • While much information can be obtained from a standard X-ray, a lot of detail about internal organs and other structures is not available. (hopkinsmedicine.org)
  • Determine whether asymptomatic infants with CF have evidence for changes in airway structure when assessed by high-resolution computed tomography, and whether airway structure correlates with airway function in this age group. (nih.gov)
  • X-ray computed tomography (CT), acoustic rhinometry] as well as test kits for olfactory and trigeminal function, there is no spatially resolved method for assessment of nasal airflow, yet. (degruyter.com)
  • These files contain the void fractions in a cavitating venturi, as obtained using x-ray computed tomography. (4tu.nl)
  • Vancouver, B.C., June 17, 2022 - Global spine X-ray and computed tomography market size reached USD 958.7 Million in 2021 and is expected to register a revenue CAGR of 5.87% during the forecast period, according to a latest analysis by Emergen Research. (emergenresearch.com)
  • The x-ray microscopes by Glenbrook Technologies, provide users with the ability to examine, in real time, the internal details of small, complex objects at high magnification. (accela.eu)
  • The extracted parameters in terms of scanning speed, size of the imaged volume and achieved resolutions should provide a baseline for future users designing nano-Tomography experiments on the NanoMAX beamline. (lu.se)
  • In this way, a focal spot moving along the target, i.e. an X-ray source rotating around the object, is generated. (hzdr.de)
  • Spine X-ray and computed tomography operate through the principle of emitting X-rays from a source into an object or patient. (emergenresearch.com)
  • Filters (thin layers of different metals) can be mounted on the X-ray source in order to narrow the spectrum of the X-rays. (empa.ch)
  • L' utilisation future de nouvelles techniques d' imagerie dans les pays en développement : rapport d'un Groupe scientifique de l' OMS [réuni à Genève du 24 septembre au ler octobre 1984]. (who.int)