helical computed tomography


spi·ral com·put·ed to·mog·ra·phy

computed tomography in which the x-ray tube continuously revolves around the patient, who is simultaneously moved longitudinally; computer interpolation allows reconstruction of standard transverse scans or images in any preferred plane. Synonym(s): helical computed tomography, helical CT, spiral CT

helical computed tomography

Computed tomographic (CT) images that are obtained as the CT table moves continuously during a single, held breath. Detailed evaluation of dynamic internal features is feasible with this technique. Synonym: spiral computed tomographySee also: tomography