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Endocytoscopic narrow-band imaging efficiency for evaluation of inflammatory activity in ulcerative colitis

World Journal of Gastroenterology 2015年第7期21卷 2108-2115页

作者： Yasuharu Maeda kazuo ohtsuka Shin-ei Kudo Kunihiko Wakamura Yuichi Mori Noriyuki Ogata Yoshiki Wada Masashi Misawa Akihiro Yamauchi Seiko Hayashi Toyoki Kudo Takemasa Hayashi Hideyuki Miyachi Fuyuhiko Yamamura Fumio Ishida Haruhiro Inoue Shigeharu Hamatani Digestive Disease Center Showa University Northern Yokohama Hospital Department of Gastroenterology and Hepatology Tokyo Medical and Dental University Hospital Endoscopy Center Showa Hospital Department of Pathology Showa University Northern Yokohama Hospital

AIM:To assess the efficacy of endocytoscopic narrowband imaging(EC-NBI)for evaluating the severity of inflammation in ulcerative colitis(UC).METHODS:This retrospective study was conducted at a single tertiary care referral *** included UC patients who underwent colonoscopy with endocytoscopy from July 2010 to December *** was performed,and the images were evaluated by assessing visibility,increased vascularization,and the increased calibers of capillaries and were classified as Obscure,Visible or *** was indicative of inactive disease,while Visible and Dilated were indicative of acute *** study received Institutional Review Board *** primary outcome measures included the diagnostic ability of EC-NBI to distinguish between active and inactive UC on the basis of histological *** conventional endoscopic images were classified according to the Mayo endoscopic score.A score of 0 or 1 indicated inactive disease,whereas a score of 2 indicated active ***:Fifty-two patients were *** was a strong correlation between the EC-NBI findings and the histological assessment(r=0.871,P<0.01).The sensitivity,specificity,positive predictive value,negative predictive value,and accuracy of EC-NBI for diagnosing acute inflammation were 84.0%,100%,87.1%,100%,and 92.3%,respectively,while those for the Mayo endoscopic score were 100%,40.7%,100%,61.0%,and 69.2%,*** with conventional endoscopy,EC-NBI was superior in diagnostic specificity,negative predictive value,and accuracy(P<0.001,P=0.001 and P=0.047,respectively).CONCLUSION:The EC-NBI finding of capillaries in the rectal mucosa was strongly correlated with histological inflammation and aided in the differential diagnosis between active and inactive UC.

关键词： Endosytoscopy Narrow-band imaging Magnified endosc

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