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Clinical Imaging of Early Gastric Cancers─Conventional Endoscopy : Including Chromoendoscopy Using Indigo Carmine Shigetaka Yoshinaga 1 , Takuji Gotoda 1 , Ichiro Oda 1 , Yutaka Saito 1 , Takahisa Matsuda 1 , Takeshi Nakajima 1 , Masanori Kiriyama 1 , Chika Kusano 1 , Haruhisa Suzuki 1 , Tetsuro Hirashima 1 , Hirokazu Taniguchi 2 , Tadakazu Shimoda 2 1Endoscopy Division, National Cancer Center Hospital, Tokyo 2Clinical Laboratory Division, National Cancer Center Hospital, Tokyo Keyword: 早期胃癌 , 範囲診断 , 通常内視鏡 pp.650-662
Published Date 2009/4/24
DOI https://doi.org/10.11477/mf.1403101636
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 We evaluated the diagnostic accuracy of a range of early gastric cancers using conventional endoscopy and chromoendoscopy after indigo-carmine dye and researched the factors that decrease the accuracy of diagnosis.

 We evaluated data in 385 lesions. Among those lesions, the rates of definite demarcation of early gastric cancers using conventional endoscopy and those of chromoendoscopy after indigo-carmine dye were 72.2% and 92.2%, respectively. The final diagnostic accuracy rate in the where range of cancers we examined was 78.4%, and the significant factors which decrease the diagnostic accuracy rate were “when the diameter of the tumor exceeds 31mm”, “when the main type of differentiation is undifferentiated type”, “when there is mixed differentiation, in which differentiated type dominates, present in the surface of the mucosa”, “when there is ulcer scar”, “when the lesion is 0 IIb”.

 In such lesions, there are some limitations encountered in using conventional endoscopy with or without indigocarmine dye, so it is considered desirable that we diagnose definitely using AIM or NBI.


Copyright © 2009, 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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