Preventive screening in adults age 50 – 75 substantially reduces colorectal cancer mortality, according to the United States Preventive Services Task Force (USPSTF)—and CT colonography (CTC) is one of the tests the panel recommends for doing such screening.
USPSTF, which is charged with recommending preventive health services for Americans, included CTC in a group of tests it recommended, along with colonoscopy, flexible sigmoidoscopy, and several stool-based tests. The panel gave an overall A rating for the quality of evidence supporting screening. Under the 2010 Affordable Care Act, commercial health insurers are required to cover preventive services without imposing patient co-pays for services given such high evidence ratings.
USPSTF said that while the evidence supporting various tests varies widely and that there are no empirical data to suggest that any of the strategies provides a greater net benefit, “the best screening test is the one that gets done.”