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virtual colonoscopy

   Also found in: Wikipedia 0.01 sec.
virtual colonoscopy
n.
A screening examination of the colon in which x-rays obtained by CAT scan are used to generate computerized three-dimensional images of the colonic mucosa.

virtual colonoscopy,
an imaging technique, used for examination of the colon, in which cross-sectional images acquired by computed tomography or magnetic resonance imaging are processed by computer to reconstruct a three-dimensional display of the colonic lumen.

virtual colonoscopy
Imaging A diagnostic procedure in which 2-D helical CT images are converted into 3-D images of the colonic mucosa that are similar and an alternative to those obtained by conventional colonoscopy.
See Colonoscopy, CT colography, Double contrast barium enema.


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