Oral abstract| Volume 85, ISSUE 5, SUPPLEMENT , AB57, May 2017

154 Computer-Aided Diagnosis Based on Endocytoscopy With Narrow-Band Imaging Allows Accurate Diagnosis of Diminutive Colorectal Lesions

      Recently, the Preservation and Incorporation of Valuable endoscopic Innovations (PIVI) initiative suggested that when endoscopists use a modality that has an over 90% negative predictive value (NPV) for colorectal adenoma, the leave in site strategy is acceptable for rectosigmoid hyperplastic polyps. However, for community-based gastroenterologists, achieving over 90% NPV is difficult (Rees CJ et al. GUT, 2016). We recently reported that computer-aided diagnosis (CAD) for endocytoscopy with narrow-band imaging (EC-NBI) had a sufficient diagnostic accuracy (Misawa M et al. Gastroenterology, 2016). The aim of this study was to investigate whether the NPV of our CAD system for rectosigmoid diminutive (≤5 mm) polyps achieved the PIVI threshold.
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