Is CT Colonography an Accurate Test?
New findings from a multi-center study of the accuracy of CT colonography suggest that it can detect about 75 to 85 percent of intermediate and large polyps. It is not as accurate in identifying smaller polyps, which also have the potential to develop in to cancer. Previous studies of CT colonography had shown a very wide range of results. On average, previous results showed that CT colonography was clearly inferior to regular colonoscopy for detection of colon polyps, with many false negatives and false positives.
