virtual colonoscopy(redirected from CT Colonography)
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.
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 colonoscopyImaging 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.