Assessment of colorectal polyp detection along the short-axis direction of the intestinal lumen during colonoscopic observation: a retrospective study in Japan.

ABSTRACT:

Background

Colorectal polyp detection during colonoscopy is influenced by the lesion location, size, morphology, and histology. However, no studies have systematically assessed the difficulty of detection along the short axis of the intestinal lumen. This study aimed to evaluate the colorectal polyp detection rates on this axis during colonoscopy.

Methods

This retrospective study analyzed 1,169 polyps in 513 patients who underwent colonoscopy at Showa University Hospital between November 2022 and February 2023. The short-axis lumen was divided into: upper right, lower right, lower left, and upper left. Each polyp detected was assigned to a quadrant. Detection rates were compared across quadrants and analyzed for associations with clinicopathological factors including lesion

SUBMITTER: Mori D 

PROVIDER: S-EPMC12936918 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature