Polyp size measurement during colonoscopy using a virtual scale: variability and systematic differences.

ABSTRACT: BACKGROUND : Accurate polyp size measurement is important for polyp risk stratification and decision-making regarding polypectomy and surveillance. Recently, a virtual scale (VS) function has been developed that allows polyp size measurement through projection of an adaptive VS onto colorectal polyps during real-time endoscopy. We aimed to evaluate the VS in terms of variability and systematic differences. METHODS : We conducted a video-based study with 120 colorectal polyps, measured by eight dedicated colorectal gastroenterologists (experts) and nine gastroenterology residents following endoscopy training (trainees). Three endoscopic measurement methods were compared: (1) visual, (2) snare and (3) VS measurement. We evaluated the method-specific variance (as measure of variability) in po

SUBMITTER: van Bokhorst QNE 

PROVIDER: S-EPMC11774581 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature