Colorectal cancer is the second leading cause of cancer deaths in most developed countries. Screening for colorectal malignancies and polyps (which frequently become cancerous) has been shown to lower the number of deaths from cancer. Most cancer societies and preventive task forces recommend regular screening for cancer of the colon.
Physicians often recommend colonoscopy for screening. Unfortunately, this procedure is uncomfortable and occasionally results in perforation of the colon, sometimes leading to death.
CT colonography is a relatively new imaging technology that can be used to examine the large bowel and rectum where these cancers occur. It is a noninvasive technique that reveals cancer lesions and polyps with nearly the same sensitivity and specificity as colonoscopy, without the risks of bowel perforation.
Dr. Joseph Romagnuolo | EurekAlert!
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