Review Article

An approach for performing a successful computed tomography colonography examination

Joel H. Bortz
South African Journal of Radiology | Vol 18, No 1 | a607 | DOI: | © 2014 Joel H. Bortz | This work is licensed under CC Attribution 4.0
Submitted: 13 March 2014 | Published: 01 December 2014

About the author(s)

Joel H. Bortz, LSG Imaging, Santa Monica, United States


Computed tomography colonography (CTC) is a minimally invasive, fast, safe and accurate screening examination for colorectal cancer. It also allows evaluation of structures outside the colon. A successful CTC examination requires good bowel preparation, adequate patient hydration, tagging agents, the use of automated carbon dioxide insufflation, and correct positioning for two view and additional view scans. Knowledge of polyp morphology and measurement of polyps are important when interpreting 2D or 3D scans.


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