Chromoendoscopy versus narrow band imaging for colonic surveillance in inflammatory bowel disease

Abstract

Background: Mucosal dye spraying (chromoendoscopy [CE]) has been shown in controlled studies to enhance lesion detection in colitis surveillance. Narrow band imaging (NBI) potentially offers a more convenient mode of highlighting mucosal lesions. The primary objectives of this study were to compare CE and NBI in colitis surveillance with respect to lesion detection. A secondary objective was to assess the accuracy of the mucosal pit pattern (Kudo classification) with NBI in predicting mucosal histology. Methods: Patients with colitis of 8 years or greater disease duration underwent screening colonoscopy with NBI, followed immediately by CE by 2 endoscopists blinded to each other's results. A..