cancer, colorectal, screening in asymptomatic high risk adults
DISEASE INTERVENTION COMPARISON RESULTS
Lancet. 2005 Jan 22-28;365(9456):305-11 Diagnostic
IN cancer, colorectal, screening in asymptomatic high risk adults The Use of
computed tomographic colonography (virtual colonoscopy)
As Diagnostic Tool
Is worse Than
conventional direct optical colonoscopy
To detect colorectal polyps > 6mm: virtual CT: sens. 55%, spec. 89%, +LR 5, -LR 0.51 ; coloscopy: sens. 99%, spec. 99.6%, +LR 248, -LR 0.01 ; barium enema: sens. 41%, spec. 82%, +LR 4.8, -LR 0.58.