NCIt related terms : spiral CT scan; helical computed tomography;
NCIt definition : A method of computed tomography (CT) that uses continuous rotation of the X-ray tube
and continuous transport of the patient through the scanning aperture that allows
the rapid acquisition of a volume of CT data. Advantages over conventional CT include:
rapid acquisition of a large volume of data within a single breath-hold, thus minimizing
respiration artifact and misregistration between slices; the ability to reconstruct
images retrospectively at any level within the scanned volume; optimization of intravenous
contrast enhancement due to the short scan times; improved multi-planar and 3-D reconstruction;
and the potential for radiation dose reduction. Same as helical computed tomography.
(British Journal of Radiology 1994 May;67(797):436-44);
Alternative definition : NCI-GLOSS: A detailed picture of areas inside the body. The pictures are created by
a computer linked to an x-ray machine that scans the body in a spiral path.; CDISC: A method of examining body organs by scanning them with X rays and using a
computer to construct a series of cross-sectional scans along a single axis.;
Codes from synonyms : CDR0000044460; CDR0000044983;