Su1703 The Study of Diagnostic Ability for the Colorectal Neoplasms by Imaged Enhanced Endoscopy Using by JNET (Japan NBI Expert Team) Classification (original) (raw)

2017, Gastrointestinal Endoscopy

AI-generated Abstract

The study investigates the diagnostic accuracy of the NICE classification in predicting deep submucosal invasion (>1000 mm) in colorectal polyps larger than 1 cm, utilizing image-enhanced endoscopy without magnification. In a prospective observational study involving 57 endoscopists across 17 centers, the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the NICE classification were assessed. Results indicated a high specificity (97%) and NPV (98%) but low sensitivity (56%) and PPV (38%) for detecting deep submucosal invasion, particularly in pedunculated polyps. The findings suggest that while NICE is effective in ruling out deep invasion, there is a critical need for enhancements in sensitivity and further investigations with advanced imaging techniques.