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Development and Usefulness of Extra-wide-angle-view Colonoscope:2nd Report Toshio Uraoka 1,2 , Shinji Tanaka 3 , Takayuki Matsumoto 4 , Yutaka Saito 5 , Shoichi Saito 6 , Takahisa Matsuda 5,7 , Shiro Oka 3 , Tomohiko Moriyama 8 , Haruhiko Ogata 9 , Naohisa Yahagi 2 , Hideki Ishikawa 10 , Hisao Tajiri 11 1Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 2Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University, Tokyo 3Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan 4Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Morioka, Japan 5Endoscopy Division, National Cancer Center Hospital, Tokyo 6Department of Gastroenterology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo 7Cancer Screening Center, National Cancer Center Hospital, Tokyo 8Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan 9Center for Diagnostic and Therapeutic Endoscopy, School of Medicine, Keio University, Tokyo 10Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan 11Department of Innovative Interventional Endoscopy Research, Jikei University School of Medicine, Tokyo Keyword: 大腸内視鏡 , 広角内視鏡 , ADR(adenoma detection rate) , 大腸腺腫 , 大腸癌 pp.1200-1204
Published Date 2017/8/25
DOI https://doi.org/10.11477/mf.1403201153
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 Colonoscopy is still the gold standard procedure for screening colorectal cancer. However, the adenoma detection rate(ADR)of 100% cannot be achieved using colonoscopy. For improving ADR, novel colonoscopes have been developed for achieving a wide-angle field. Olympus has developed the“extra-wide-angle-view colonoscope”that comprises two lenses:a lateral-backward-view lens and a standard-angle forward-view lens. Two views from both lenses are simultaneously obtained and displayed as a single image on a video monitor. This novel colonoscope is expected to be used in colonoscopy for screening colorectal cancer.


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

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