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CT Colography (Virtual Colonoscopy) Print E-mail

Dr. Kennedy CT colography (aka virtual colonoscopy) is a method for examining the colon by taking a series of x-rays and then using a computer to reconstruct three-dimensional pictures (a CT scan) of the interior surfaces of the colon from these x-rays. The pictures can be saved, manipulated to better viewing angles, and reviewed after the procedure. The procedure requires a 48-hour low-fiber diet and a complete bowel cleansing. If something suspicious is noted, a regular colonoscopy is needed to biopsy or remove it. It results in about 15% false positives (misleading readings that unnecessarily require a regular colonoscopy). It is also not yet known whether it can reliably detect flat adenomas which, like polyps, can give rise to colon cancer.



The information in this article is not meant to be medical advice.�Treatment for a medical condition should come at the recommendation of your personal physician.

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