CT colonography: size reduction of submerged colorectal polyps due to electronic cleansing and CT-window settings.

ABSTRACT: OBJECTIVES:To assess whether electronic cleansing (EC) of tagged residue and different computed tomography (CT) windows influence the size of colorectal polyps in CT colonography (CTC). METHODS:A database of 894 colonoscopy-validated CTC datasets of a low-prevalence cohort was retrospectively reviewed to identify patients with polyps ≥6 mm that were entirely submerged in tagged residue. Ten radiologists independently measured the largest diameter of each polyp, two-dimensionally, before and after EC in colon, bone, and soft-tissue-windows, in randomised order. Differences in size and polyp count before and after EC were calculated for size categories ≥6 mm and ≥10 mm. Statistical testing involved 95% confidence interval, intraclass correlation and mixed-model ANOVA. RESULTS:Thirty-seven pa

SUBMITTER: Brauer C 

PROVIDER: S-EPMC6182748 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature