Stomach and Intestine(Tokyo) Volume 42, Issue 5 (April 2007)

Clinical Impact of Magnifying Endoscopy with Narrow Band Imaging for Ampullary Tumors Hiro-o Imazu 1 , Yujiro Uchiyama 1 , Hiroshi Kakutani 1 , Akira Kuramochi 1 , Masayuki Kato 1 , Shintaro Tsukinaga 1 , Keisuke Kanazawa 1 , Keiichi Ikeda 1 , Hisao Tajiri 1,2 1Department of Endoscopy, The Jikei University School of Medicine, Tokyo 2Department of Gastroenterology and Hepatology, The Jikei University School of Medicine, Tokyo Keyword: Vater乳頭部腫瘍 , NBI併用拡大内視鏡 pp.765-769
Published Date 2007/4/26
  • Abstract
  • Look Inside
  • Reference
  • Cited by

 Recently, magnifying endoscopy with narrow band imaging(NBI)has been developed and could yield clear images of mucosal and microvascular structure. Regarding ampullary tumor, non-structural mucosa and abnormal vessels were able to be seen more often in adenocarcinoma. Sensitivity and specificity of forceps biopsy and magnifying endoscopy with NBI to differentiate adenocarcinoma from adenoma by the presence or absence of abnormal vessels were50%, 100% and83.4%, 100%, respectively. The NBI system shows great potential to enable accurate diagnosis even of the foci of adenocarcinoma, which foci cannot be detected using forceps biopsy.

Copyright © 2007, Igaku-Shoin Ltd. All rights reserved.


42巻5号 (2007年4月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院