Author:
Omori Takafumi,Kamiya Yoshio,Tahara Tomomitsu,Shibata Tomoyuki,Nakamura Masakatsu,Yonemura Joh,Okubo Masaaki,Yoshioka Daisuke,Ishizuka Takamitsu,Maruyama Naoko,Kamano Toshiaki,Fujita Hiroshi,Nakagawa Yoshihito,Nagasaka Mitsuo,Iwata Masami,Arisawa Tomiyasu,Hirata Ichiro
Abstract
Abstract
Background
Several study showed usefulness of microscopic capillaries, seen by magnifying narrow band imaging (NBI) endoscopy for predicting histopathology among superficial depressed or flat elevated gastric neoplasia (GN). Here we assessed the diagnostic efficacy of magnifying NBI for predicting histopathology among gastric protruding/or polypoid lesions.
Methods
Using endoscopic pictures of magnifying NBI from 95 protruding/or polypoid lesions (19 fundic gland polyps: FGP, 47 hyperplastic polyps: HP, and 29 GN), fine mucosal patterns were classified into four categories: small round, prolonged, villous or ridge, and unclear patterns, and micro vascular patterns were classified into five categories: honey comb, dense vascular, fine net work, core vascular, and unclear patterns.
Results
Most suggestive micro vascular patterns for predicting FGP, and HP were honeycomb (sensitivity 94.7%, specificity 97.4%), and dense vascular patterns (sensitivity 93.6%, specificity 91.6%), respectively. Fine net work, core vascular, and unclear patterns presented higher specificity (97%, 100%, and 100%) for predicting GN, and diagnostic efficacy of combined of those patterns was favorable (sensitivity 86.2%, specificity 97.0%).
Conclusion
Micro vascular patterns by using magnifying NBI provides meaningful information for predicting the histopathology of gastric protruding/or polypoid lesions.
Publisher
Springer Science and Business Media LLC
Subject
Gastroenterology,General Medicine
Cited by
30 articles.
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