CT is an abbreviation for computed tomography, which is a valuable diagnostic medical exam that combines X-rays and computers. CT Colonography is a noninvasive technique for evaluating the interior of the colon or large intestines. This technique uses a computer to give a more in-depth clinical evaluation with 3-D images. More traditional means of examining the colon would be a colonoscopy, which is where an endoscope is inserted into the rectum. CT Colonography is used to diagnose colorectal disease such as polyps, diverticulitis and cancer.
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