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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© 2017 Published by Elsevier Inc.
