Schaeffer B, et al.
The aim of this study is to evaluate the benefits of dual–energy computed tomography (CT) colonography (DECTC) as a preoperative staging tool in patients with clinically suspected colorectal cancer (CRC). Preoperative DECTC can be used as an accurate and dose–efficient primary–staging examination. Especially after incomplete optical colonoscopy, virtual colonoscopy enables full preoperative colonic assessment on the same day, dual–energy CT enables distinction between neoplasia and non–neoplastic findings within and outside the colon.