Twin trials from the UK confirm that computed tomography (CT) of the colon is a sensitive test for colorectal cancer in adults with suspicious symptoms. Computed tomography found more cancers and large polyps than a barium enema in the first trial (7.3% (93/1277) v 5.6% (141/2527); relative risk 1.31, 95% CI 1.01 to 1.68) …
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