Is CTC given an equal chance for colon cancer screening?
Unlike other colorectal cancer screening tests that are currently recommended by the U.S. Preventive Services Task Force (USPSTF) and the Centers for Medicare & Medicaid Services (CMS), CT colonography (CTC) screening appears to be held to a higher standard, according to a perspective published in the Feb. 3 edition of the Annals of Internal Medicine. Samita Garg, MD, and Dennis Ahnen, MD, of the Denver Veterans Affairs Medical Center and the University of Colorado Denver School of Medicine, said that the recent guidelines for colorectal cancer screening have varied in their conclusions on whether CTC is an acceptable screening option. As a result, the CMS has decided against covering CTC screening for patients. Concerns regarding CTC for colon cancer screening from the CMS include: • Radiation exposure; • False-negative rates for small polyps; • The discovery of extracolonic findings; • Variability in performance; • A lack of targeted studies; • A higher adenoma rate in the Medicare-e
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