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Insights Imaging. 2011 Feb;2(1):57-68. Epub 2011 Jan 4.

CT colonography: avoiding traps and pitfalls.

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  • 1VCTC-Virtual Colonoscopy Teaching Centre, Akkerstraat 32c, 8830 Hooglede, Belgium.


Computed tomographic colonography (CTC) is a reliable technique for detecting tumoral lesions in the colon. However, good performance of polyp detection is only achieved if experienced CTC radiologists combine meticulous interpretation with state-of-the-art CTC technique. To reach this experience level, CTC training is mandatory. With a considerably long and steep learning curve, it has been demonstrated that in inexperienced hands both technical failure and observer errors stand for the majority of missed lesions. The purpose of this pictorial review is to give an overview of traps and pitfalls in CTC imaging resulting in false negative and positive findings, and how to avoid them by application of state-of-the-art CTC technique and interpretation.

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