Current status of use of transnasal endoscopy in personal health checkup and its accuracy in screening gastric cancers at multiple institutions

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  • 多施設内視鏡胃がん個別検診における経鼻内視鏡の現況と精度
  • タシセツ ナイシキョウ イ ガン コベツ ケンシン ニ オケル ケイ ビ ナイシキョウ ノ ゲンキョウ ト セイド

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Abstract

We studied the current status of use of transnasal endoscopy in personal health checkup and its accuracy in screening gastric cancers, using data from multiple institutions in Maebashi City from 2006 to 2007. The number of health checkups using transnasal endoscopy has rapidly increased by more than twofold over the year. Although the detection rate of gastric cancers by transnasal endoscopy was 0.82%, which is slightly higher than that by transoral endoscopy (0.60%), the difference in the detection rate of early gastric cancers between the two was not significant. Both the detection accuracy of gastric cancers and the detection rate of early gastric cancers were higher at member institutions of The Japan Gastroenterological Endoscopy Society (JGES) than at non-JGES member institutions. In addition, the false-negative detection rate of gastric cancers by transoral endoscopy was slightly higher than that by transnasal endoscopy. In order to further improve the detection accuracy of gastric cancers and decrease the false-negative detection rate, it is necessary to eliminate sites undetected by endoscopy by conducting observations with the standard endoscopic method, as well as to improve image quality.

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