[CT colonography: a new method for detecting colorectal cancer and polyps].

BACKGROUND

CT colonography is a new method for the detection of colorectal cancer and polyps.

MATERIAL AND

METHODS

The article is based upon a review of the literature in PubMed (1994-2005) for CT colonography, as well as the authors' own experience.

RESULTS

The seven largest publications show 55-94% sensitivity and 92-98% specificity for polyps > or = 10 mm. Compared to conventional CT examinations, the method has different requirements for patient preparation and technique. Our own experience so far is limited, but promising.

INTERPRETATION: CT colonography seems to be a good alternative to the barium enema examination and a suitable supplement to incomplete colonoscopy. Hands-on training of radiologists is required before optimal results can be obtained.