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Diagnosis of Early Gastric Cancer Using Narrow-Band Imaging Magnifying Endoscopy:Perspectives from Tissue-Type Diagnosis Hidetaka Hamamoto 1,2 , Tokuma Tanuma 1 , Yuichiro Suzuki 1 , Yuki Murakami 1 , Gota Sudo 1 , Hironori Aoki 1 , Taku Harada 1 , Yuko Omori 3 , Toshiya Shinohara 3 1Department of Gastroenterology, Teine-Keijinkai Hospital, Sapporo, Japan 2Nagayama Digestive Health Clinic, Asahikawa, Japan 3Department of Pathology, Teine-Keijinkai Hospital, Sapporo, Japan Keyword: 早期胃癌 , NBI , 拡大内視鏡 , 組織型診断 pp.621-634
Published Date 2018/5/24
DOI https://doi.org/10.11477/mf.1403201358
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 We investigated the capacity of NBI(narrow-band imaging)to detect differentiated cancers(tub1, tub2, pap, fundic gland-type gastric adenocarcinoma)and undifferentiated carcinomas(por/sig, muc), as well as its usefulness in the histological diagnosis of early gastric cancer. The following findings were obtained:(1)the diagnostic abilities of white light and NBI for dominant tissue type(differentiated or undifferentiated)were 92.6% and 99.1% respectively(104/112:111/112, p<0.05) ; (2)the diagnostic abilities of white light and NBI for mixed tissue conditions(purely differentiated, mostly differentiated, mostly undifferentiated, and purely undifferentiated)were 83.9% and 86.6%, respectively(94/112:97/112, p<0.01) ; and(3)the diagnostic ability of NBI for the main tissue types(tub1, tub2, fundic gland-type, fundic gland mucosa-type, pap, por/sig, muc), which are often targeted by this technique, was 86.6%(97/112). Taken together, these results demonstrate the usefulness of NBI magnifying endoscopy for diagnosing the status of both dominant and mixed tissue types and that tissue-type diagnosis was generally possible.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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