Colorectal Cancer :: AGA Institute statement on CT colonography study

Colorectal cancer is the second-leading cause of cancer deaths, affecting both men and women nearly equally and is one of the most preventable cancers. The American Gastroenterological Association (AGA) Institute supports clinically proven technologies that increase the number of patients screened for colon cancer.

The AGA Institute offers the following comments on the study by Kim et al., “CT Colonography Versus Colonoscopy for the Detection of Advanced Neoplasia,” published in the Oct. 4, 2007, issue of the New England Journal of Medicine.

“This study expands our knowledge about computerized tomographic colonography (CTC), or virtual colonoscopy,” said Robert Sandler, MD, MPH, AGAF, president-elect of the AGA Institute. “The AGA Institute welcomes research that will help to clarify the role CT colonography will play in the screening and detection of colorectal cancer and polyps, but many questions remain. This study by Kim and colleagues shows that CT colonography may be another tool in encouraging patients who have not already done so to get screened for colon cancer.”

When a polyp is found during an optical colonoscopy, the physician can remove it immediately. In the study by Kim, diminutive polyps (

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