722 Comparison Between Newly-Developed Narrow Band Imaging and Panchromoendoscopy for Surveillance Colonoscopy in Patients With Longstanding Ulcerative Colitis: A Prospective Multicenter Randomized Controlled Trial, Navigator Study

Recent trends toward more accurate surveillance colonoscopy (SC) in patients with longstanding ulcerative colitis (UC) favor the use of dye-sprayed chromoendoscopy with a targeted biopsy approach. Previous studies showed no additional efficacy of narrow band imaging (NBI) for the detection of neoplastic lesions as compared with white light endoscopy or chromoendoscopy. The newly-developed NBI improved the resolution and brightness of distant views. The aim of the present study was to compare the newly-developed pancolonic NBI endoscopy procedure with panchromoendoscopy (PCE) for the detection of neoplastic lesions and in terms of procedure time in patients with UC.