Abstract

MARTINEZ, Yolette et al. Starting in narrow-band imaging: Differences between hyperplastic polyps and adenomas: 20 minutes are enough?. Gen [online]. 2012, vol.66, n.1, pp.35-37. ISSN 0016-3503.

Introduction: The 2 main types of colon polyps are adenomas and hyperplastic. Narrow band imaging (NBI) is a novel technology that enhances the visualization of surface mucosal and vascular patterns on the polyp surface. The patterns seen on the polyp surface with NBI that can help differentiate between adenomas and hyperplastic polyps with a high degree of accuracy. Objectives: The aim of this study was to evaluate the interobserver and intraobserver agreement (among endoscopists). Materials and Methods: 14 gastroenterologists and 50 images were selected hyperplastic polyps and adenomas verified by histology. Results: The score of increase in the effective identification of lesions ranged from 37.86% to 78.57%. Conclusions: This initial evaluation showed that the NBI polyp patterns described in our pilot study are reproducible, easy to learn, reasonably accurate, and have the potential for use in daily clinical practice for the realtime differentiation of colon polyps.

Keywords : Narrow band imaging (NBI); hyperplastic polyps; adenomas.