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Japanese

Endoscopic Diagnosis of Pharyngeal Cancer Using I-scan Digital Technology Yoshiro Kawahara 1 , Junichiro Nasu 1 , Seiji Kawano 1 , Masafumi Inoue 1 , Takao Tsuzuki 2 , Masahide Kita 2 , Keisuke Hori 1 , Daisuke Kawai 2 , Sayo Kobayashi 2 , Hiroyuki Okada 1 , Kazuhide Yamamoto 2 1Department of Endoscopy, Okayama University Hospital, Okayama, Japan 2Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Okayama, Japan Keyword: i-scan , image enhanced endoscopy , 咽頭癌 , brownish area , ESD pp.387-391
Published Date 2012/3/25
DOI https://doi.org/10.11477/mf.1403113128
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 It is necessary to observe a pharynx at close range, because of problems of light quantity, to find and to observe pharynx superficial cancer by magnifying endoscopy and NBI(narrow band imaging). However, the pharynx is easily affected by the vomiting reflex of properly patients and, for a considerably long time, it is often difficult to perform endoscopy finely. I-scan is an image enhancement technology classified in the digital method, and the TE(tone enhancement)-e mode can visualize the region of squamous cell carcinoma as a brownish area. We can observe the whole pharynx in a short time by using the EPK-i system and megapixel endoscopy because of its rich light quantity. Therefore, a pharynx/neck cancer of the esophagus can be found with little pain involved for the patients.


Copyright © 2012, Igaku-Shoin Ltd. All rights reserved.

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

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