- 【Updated on May 12, 2025】 Integration of CiNii Dissertations and CiNii Books into CiNii Research
- Trial version of CiNii Research Knowledge Graph Search feature is available on CiNii Labs
- 【Updated on June 30, 2025】Suspension and deletion of data provided by Nikkei BP
- Regarding the recording of “Research Data” and “Evidence Data”
Validation study for development of the Japan NBI Expert Team classification of colorectal lesions
-
- Mineo Iwatate
- Gasrtrointestinal Center and Institute of Minimally‐Invasive Endoscopic Care (iMEC) Sano Hospital Kobe Japan
-
- Yasushi Sano
- Gasrtrointestinal Center and Institute of Minimally‐Invasive Endoscopic Care (iMEC) Sano Hospital Kobe Japan
-
- Shinji Tanaka
- Department of Endoscopy Hiroshima University Hiroshima Japan
-
- Shin‐ei Kudo
- Digestive Disease Center Showa University Northern Yokohama Hospital Yokohama Japan
-
- Shoichi Saito
- Department of Gastroenterology Cancer Institute Hospital Tokyo Japan
-
- Takahisa Matsuda
- Cancer Screening Center Tokyo Japan
-
- Yoshiki Wada
- Wada Clinic Wakayama Japan
-
- Takahiro Fujii
- Takahiro Fujii Clinic Tokyo Japan
-
- Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy National Cancer Center Hospital East Kashiwa Japan
-
- Toshio Uraoka
- Department of Gastroenterology and Hepatology Gunma University Graduate School of Medicine Maebashi Japan
-
- Nozomu Kobayashi
- Department of Gastroenterology Tochigi Cancer Center Utsunomiya Japan
-
- Hisashi Nakamura
- Akasaka Endoscopic Clinic Tokyo Japan
-
- Kinichi Hotta
- Division of Endoscopy Shizuoka Cancer Center Suntogun Japan
-
- Takahiro Horimatsu
- Department of Therapeutic Oncology Kyoto University Kyoto Japan
-
- Naoto Sakamoto
- Department of Gastroenterology Juntendo University Tokyo Japan
-
- Kuang‐I Fu
- Department of Gastroenterology Kanma Memorial Hospital Nasushiobara Japan
-
- Osamu Tsuruta
- Division of Gastroenterology Kurume University Kurume Japan
-
- Hiroshi Kawano
- Department of Gastroenterology St. Mary's Hospital Kurume Japan
-
- Hiroshi Kashida
- Department of Gastroenterology and Hepatology Kindai University Osaka‐Sayama Japan
-
- Yoji Takeuchi
- Department of Gastrointestinal Oncology Osaka International Cancer Institute Osaka Japan
-
- Hirohisa Machida
- Internal Medicine Machida Gastrointestinal Hospital Osaka Japan
-
- Toshihiro Kusaka
- Department of Gastroenterology and Hepatology Kyoto Katsura Hospital Kyoto Japan
-
- Naohisa Yoshida
- Department of Molecular Gastroenterology and Hepatology Graduate School of Medical Science Kyoto Japan
-
- Ichiro Hirata
- Department of Gastroenterology Osaka Central Hospital Osaka Japan
-
- Takeshi Terai
- Terai Clinic Tokyo Japan
-
- Hiro‐o Yamano
- Department of Gastroenterology and Hepatology Sapporo Medical University School of Medicine Sapporo Japan
-
- Takeshi Nakajima
- Endoscopy Division National Cancer Center Hospital Tokyo Japan
-
- Taku Sakamoto
- Endoscopy Division National Cancer Center Hospital Tokyo Japan
-
- Yuichiro Yamaguchi
- Tokura Yamaguchi Clinic Mishima Japan
-
- Naoto Tamai
- Department of Endoscopy The Jikei University School of Medicine Tokyo Japan
-
- Naoko Nakano
- Department of Gastroenterology Fujita Health University Toyoake Japan
-
- Nana Hayashi
- Department of Endoscopy Hiroshima University Hiroshima Japan
-
- Shiro Oka
- Department of Endoscopy Hiroshima University Hiroshima Japan
-
- Hideki Ishikawa
- Department of Molecular‐Targeting Cancer Prevention Kyoto Prefectural University of Medicine Kyoto Japan
-
- Yoshitaka Murakami
- Toho University Tokyo Japan
-
- Shigeaki Yoshida
- CEO Aomori Prefectural Central Hospital Administration Aomori Japan
-
- Yutaka Saito
- Endoscopy Division National Cancer Center Hospital Tokyo Japan
Search this article
Description
<jats:sec><jats:title>Background and Aim</jats:title><jats:p>The Japan narrow‐band imaging (NBI) Expert Team (JNET) was organized to unify four previous magnifying NBI classifications (the Sano, Hiroshima, Showa, and Jikei classifications). The JNET working group created criteria (referred to as the NBI scale) for evaluation of vessel pattern (VP) and surface pattern (SP). We conducted a multicenter validation study of the NBI scale to develop the JNET classification of colorectal lesions.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Twenty‐five expert JNET colonoscopists read 100 still NBI images with and without magnification on the web to evaluate the NBI findings and necessity of the each criterion for the final diagnosis.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Surface pattern in magnifying NBI images was necessary for diagnosis of polyps in more than 60% of cases, whereas VP was required in around 90%. Univariate/multivariate analysis of candidate findings in the NBI scale identified three for type 2B (variable caliber of vessels, irregular distribution of vessels, and irregular or obscure surface pattern), and three for type 3 (loose vessel area, interruption of thick vessel, and amorphous areas of surface pattern). Evaluation of the diagnostic performance for these three findings in combination showed that the sensitivity for types 2B and 3 was highest (44.9% and 54.7%, respectively), and that the specificity for type 3 was acceptable (97.4%) when any one of the three findings was evident. We found that the macroscopic type (polypoid or non‐polypoid) had a minor influence on the key diagnostic performance for types 2B and 3.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Based on the present data, we reached a consensus for developing the JNET classification.</jats:p></jats:sec>
Journal
-
- Digestive Endoscopy
-
Digestive Endoscopy 30 (5), 642-651, 2018-06-26
Wiley