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computed tomography n radiography in which a three-dimensional image of a body structure is constructed by computer from a series of plane cross-sectional images made along an axis abbr. CT
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(CT), computerized axial tomography (CAT) tomography in which the emergent x-ray beam is measured by a scintillation counter; the electronic impulses are recorded digitally and then are processed by a computer for reconstruction display. Called also CAT or CT scan.Medical dictionary. 2011.