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computerized axial tomography |
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computerized axial tomography: see CAT scan CAT scan (kăt) [computerized axial t ..... Click the link for more information. . computerized axial tomography (CAT)Diagnostic imaging method using a low-dose beam of X-rays that crosses the body in a single plane at many different angles. Conceived by William Oldendorf and developed independently by Godfrey Hounsfield and Allan M. Cormack, who shared a 1979 Nobel Prize for their inventions, this major advance in imaging technology became generally available in the early 1970s. Detectors record the strength of the exiting X-rays; this information is then processed by computer to produce a detailed two-dimensional cross-sectional image of the body. A series of such images in parallel planes or around an axis can show the location of abnormalities (especially tumours and other masses) more precisely than can conventional X-ray images. |
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| By relying upon the evidence-based ACR Appropriateness Criteria when ordering diagnostic imaging, marked reductions in the utilization of magnetic resonance imaging (MRI) and computerized axial tomography (CAT) were achieved. Their technique is similar to computerized axial tomography, or CAT scanning, which uses X rays to make three-dimensional image;, of a person's internal anatomy. More radiographs, nuclear magnetic resonance images, and computerized axial tomography scans have been added, as well as photographs of living subjects. |
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computerized axial tomography
