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In Reply: Dr Pisarik questions the acceptance of CT colonography by patients and the accuracy of polyp size determination by CT colonography. He doubts the assumption in the study by Regge et al¹ that CT colonography will be better tolerated by patients and thus improve adherence to screening and surveillance programs. Pisarik argues that the 1.4 days off work and the 2 colon cleansings for 2 CT colonographies over a 10-year period is more of an onus to patients than 1 day off work and 1 colon cleansing for optical colonoscopy. I believe that these differences are quite small and unlikely to have a major effect on patient preferences. Moreover, if future studies continue to report high rates of sensitivity and specificity for CT colonography, the currently recommended screening interval of 5 years may be prolonged. In the meantime, patient preference for colorectal cancer screening in the era of CT . . . [Full Text of this Article]

Emily Finlayson, MD, MS
efinlays@umich.edu
Division of Colon and Rectal Surgery
University of Michigan Health Systems
Ann Arbor

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