CT colonography of a Medicare-aged population: outcomes observed in an analysis of more than 1400 patients

Abstract

Objective: We evaluated outcomes of patients 65 years old and older who underwent CT colonography (CTC) between 2004 and 2009.

Conclusion: The frequency of referral to colonoscopy based on a polyp size threshold of 6 mm was 14.5%. Colorectal neoplasia was found in 9.3% of patients, with advanced neoplasia in 3.3%. Potentially important extracolonic findings were observed in 2.9% of patients. The low rates of referral to colonoscopy, prevalence of advanced neoplasia, and prevalence of extracolonic findings make CTC a viable option for Medicare-aged patients.