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Clinical impact and characteristics of the narrow-band imaging magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team

Sumimoto, Kyoku, MD ; Tanaka, Shinji, MD, PhD ; Shigita, Kenjiro, MD ; Hirano, Daiki, MD ; Tamaru, Yuzuru, MD ; Ninomiya, Yuki, MD ; Asayama, Naoki, MD ; Hayashi, Nana, MD, PhD ; Oka, Shiro, MD, PhD ; Arihiro, Koji, MD, PhD ; Yoshihara, Masaharu, MD, PhD ; Chayama, Kazuaki, MD, PhD

Gastrointestinal endoscopy, 2017-04, Vol.85 (4), p.816-821 [Periódico revisado por pares]

United States: Elsevier Inc

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Título:
Clinical impact and characteristics of the narrow-band imaging magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team
Autor: Sumimoto, Kyoku, MD ; Tanaka, Shinji, MD, PhD ; Shigita, Kenjiro, MD ; Hirano, Daiki, MD ; Tamaru, Yuzuru, MD ; Ninomiya, Yuki, MD ; Asayama, Naoki, MD ; Hayashi, Nana, MD, PhD ; Oka, Shiro, MD, PhD ; Arihiro, Koji, MD, PhD ; Yoshihara, Masaharu, MD, PhD ; Chayama, Kazuaki, MD, PhD
Assuntos: Adenoma - diagnostic imaging ; Adenoma - pathology ; Adenoma - surgery ; Carcinoma - diagnostic imaging ; Carcinoma - pathology ; Carcinoma - surgery ; Colonoscopy ; Colorectal Neoplasms - diagnostic imaging ; Colorectal Neoplasms - pathology ; Colorectal Neoplasms - surgery ; Endoscopic Mucosal Resection ; Gastroenterology and Hepatology ; Humans ; Japan ; Narrow Band Imaging ; Neoplasm Grading ; Neoplasm Invasiveness ; Retrospective Studies ; Sensitivity and Specificity
É parte de: Gastrointestinal endoscopy, 2017-04, Vol.85 (4), p.816-821
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: Background and Aims The Japan NBI Expert Team (JNET) was established in 2011 and has proposed a universal narrow-band imaging (NBI) magnifying endoscopic classification of colorectal tumors. The aim of this study was to evaluate the clinical usefulness of the JNET classification for colorectal lesions. Methods We analyzed 2933 colorectal lesions, which were diagnosed by NBI magnifying observation before endoscopic treatment or surgery. The colorectal lesions consisted of 136 hyperplastic polyps/sessile serrated polyps (HPs/SSPs), 1926 low-grade dysplasia (LGD), 571 high-grade dysplasia (HGD), 87 superficial submucosal invasive (SM-s) carcinomas, and 213 deep submucosal invasive (SM-d) carcinomas. We evaluated the relationship between the JNET classification and the histologic findings of these lesions. Results The sensitivity, specificity, positive and negative predictive values, and accuracy of Type 1 lesions for the diagnosis of HP/SSP were, respectively, 87.5%, 99.9%, 97.5%, 99.4%, and 99.3%; of Type 2A lesions for the diagnosis of LGD were 74.3%, 92.7%, 98.3%, 38.7%, and 77.1%; of Type 2B lesions for the diagnosis of HGD/SM-s carcinoma were 61.9%, 82.8%, 50.9%, 88.2%, and 78.1%; for Type 3 lesions for the diagnosis of SM-d carcinoma were 55.4%, 99.8%, 95.2%, 96.6%, and 96.6%, respectively. Conclusions Type 1, 2A, and 3 of the JNET classification were very reliable indicators for HP/SSP, LGD, and SM-d carcinoma, respectively. However, the specificity and positive predictive value of Type 2B were relatively lower than those of others. Therefore, an additional examination such as pit pattern diagnosis using chromoagents is necessary for accurate diagnosis of Type 2B lesions.
Editor: United States: Elsevier Inc
Idioma: Inglês

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Clinical impact and characteristics of the narrow-band imaging magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team

Sumimoto, Kyoku, MD ; Tanaka, Shinji, MD, PhD ; Shigita, Kenjiro, MD ; Hirano, Daiki, MD ; Tamaru, Yuzuru, MD ; Ninomiya, Yuki, MD ; Asayama, Naoki, MD ; Hayashi, Nana, MD, PhD ; Oka, Shiro, MD, PhD ; Arihiro, Koji, MD, PhD ; Yoshihara, Masaharu, MD, PhD ; Chayama, Kazuaki, MD, PhD

United States: Elsevier Inc

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