virtual colonoscopy

(redirected from CT Colonography)

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.
A diagnostic procedure in which 2-dimensional helical CT images are converted into 3-dimensional images of the colonic mucosa similar to those obtained by conventional colonoscopy.

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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References in periodicals archive ?
Computer-aided diagnosis scheme for detection of polyps at CT colonography.
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Medicare will not cover cost of virtual colonoscopy
The Centers for Medicare and Medicaid Services has proposed to refuse coverage of CT colonography for colorectal cancer screening.
Medicare coverage of CT colonography looks unlikely
I performed the first VC, also known as CT colonography (CTC), at the Wake Forest University Health Sciences Center in 1993.
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Reliability of CT colonography for screening is questioned
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DSM enhances breast cancer detection

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