Narrow-band imaging (NBI) magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team

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• 作者：Yasushi Sano ; Shinji Tanaka ; Shin-ei Kudo ; Shoichi Saito ; Takahisa Matsuda ; Yoshiki Wada ; Takahiro Fujii ; Hiroaki Ikematsu ; Toshio Uraoka ; Nozomu Kobayashi ; Hisashi Nakamura ; Kinichi Hotta ; Takahiro Horimatsu ; Naoto Sakamoto ; Kuang-I Fu ; Osamu Tsuruta ; Hiroshi Kawano ; Hiroshi Kashida ; Yoji Takeuchi ; Hirohisa Machida ; Toshihiro Kusaka ; Naohisa Yoshida ; Ichiro Hirata ; Takeshi Terai ; Hiro-o Yamano ; Kazuhiro Kaneko ; Takeshi Nakajima ; Taku Sakamoto ; Yuichiro Yamaguchi ; Naoto Tamai ; Naoko Nakano ; Nana Hayashi ; Shiro Oka ; Mineo Iwatate ; Hideki Ishikawa ; Yoshitaka Murakami ; Shigeaki Yoshida and Yutaka Saito
• 刊名：Digestive Endoscopy
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：28
• 期：5
• 页码：526-533
• 全文大小：1808K
• ISSN：1443-1661

文摘

Many clinical studies on narrow-band imaging (NBI) magnifying endoscopy classifications advocated so far in Japan (Sano, Hiroshima, Showa, and Jikei classifications) have reported the usefulness of NBI magnifying endoscopy for qualitative and quantitative diagnosis of colorectal lesions. However, discussions at professional meetings have raised issues such as: (i) the presence of multiple terms for the same or similar findings; (ii) the necessity of including surface patterns in magnifying endoscopic classifications; and (iii) differences in the NBI findings in elevated and superficial lesions. To resolve these problems, the Japan NBI Expert Team (JNET) was constituted with the aim of establishing a universal NBI magnifying endoscopic classification for colorectal tumors (JNET classification) in 2011. Consensus was reached on this classification using the modified Delphi method, and this classification was proposed in June 2014. The JNET classification consists of four categories of vessel and surface pattern (i.e. Types 1, 2A, 2B, and 3). Types 1, 2A, 2B, and 3 are correlated with the histopathological findings of hyperplastic polyp/sessile serrated polyp (SSP), low-grade intramucosal neoplasia, high-grade intramucosal neoplasia/shallow submucosal invasive cancer, and deep submucosal invasive cancer, respectively.