Microvascular density under magnifying narrow-band imaging endoscopy in colorectal epithelial neoplasms

Background/Aims Magnifying endoscopic classification systems, such as the Japan narrow-band imaging (NBI) Expert Team (JNET) classification, have been widely used for predicting the histologic diagnosis and invasion depth of colorectal epithelial tumors. However, disagreement exists among observers...

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Bibliographic Details
Published in:Intestinal research 2020, 18(1), , pp.107-114
Main Authors: Gonai, Takahiro, Kawasaki, Keisuke, Nakamura, Shotaro, Yanai, Shunichi, Akasaka, Risaburo, Sato, Kunihiko, Toya, Yousuke, Asakura, Kensuke, Urushikubo, Jun, Fujita, Yasuko, Eizuka, Makoto, Uesugi, Noriyuki, Sugai, Tamotsu, Matsumoto, Takayuki
Format: Article
Language:English
Subjects:
colonoscopy
colorectal neoplasms
microvascular density
narrow band imaging
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내과학
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Summary:Background/Aims Magnifying endoscopic classification systems, such as the Japan narrow-band imaging (NBI) Expert Team (JNET) classification, have been widely used for predicting the histologic diagnosis and invasion depth of colorectal epithelial tumors. However, disagreement exists among observers regarding magnifying endoscopic diagnosis, because these classification systems are subjective. We herein investigated the utility of endoscopic microvascular density (eMVD) calculated from magnifying NBI endoscopic images in colorectal tumors. Methods We reviewed magnifying NBI endoscopic images from 169 colorectal epithelial tumors (97 adenomas, 72 carcinomas/high-grade dysplasias) resected endoscopically or surgically. The eMVD on magnifying NBI endoscopic images was evaluated using image-editing software, and relationships between eMVD and clinical, endoscopic, and pathological findings were retrospectively analyzed. Results The eMVD in carcinomas (0.152 ± 0.079) was significantly higher than that in adenomas (0.119 ± 0.059, P
ISSN:1598-9100
2288-1956
DOI:10.5217/ir.2019.00061