[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.


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.


CONCLUSIONS
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.
Ringstad
Geir
G
Radiologisk avdeling, Sykehuset Østfold, Postboks 16, 1603 Fredrikstad. geir.ringstad@rikshospitalet.no
Holmquist
Henrik
H
Brabrand
Knut
K
Aaløkken
Trond Mogens
TM
Hauge
Truls
T
D003111:Colonic Polyps / Q000175:diagnosis*; D023881:Colonography, Computed Tomographic / Q000379:methods*; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D006801:Humans; D012680:Sensitivity and Specificity