INTESTINE Vol.13 No.2(2-3-2)


特集名 大腸癌画像診断の最先端
題名 2. 大腸癌の存在診断 (3) 蛍光内視鏡 (AFI) b. 自家蛍光内視鏡を用いた大腸腫瘍性病変の存在診断
発刊年月 2009年 03月
著者 山野 泰穂 秋田赤十字病院消化器病センター
著者 鶴田 修 久留米大学医学部第二内科
著者 津田 純郎 福岡大学筑紫病院消化器科
【 要旨 】 大腸内視鏡検査における病変の拾い上げに関して,自家蛍光観察装置(Autofluorescence Imaging;以下,AFI)を搭載した拡大大腸内視鏡を用い3施設共同で107症例に対して施行した.観察範囲は肛門から30cmまでの直腸・S状結腸に限定して同一術者が通常観察とAFI観察を行い,両者間における病変指摘能,発見病変の形態,組織を比較検討した.その結果,AFI観察では腫瘍径5mm以下の表面型病変に対する病変指摘能,存在診断においてその有効性が期待できると考えられたが,質的診断に関しては機器の発展も含めてさらなる検討が必要であると考えられた.
Theme Frontier of image diagnosis for colorectal carcinoma
Title A study of detection ability of colorectal neoplasm by using a magnifying and Autofluorescence Imaging (AFI) enhanced colonoscopy
Author Hiro-o Yamano Division of Gastroenterology, Akita Red Cross Hospital
Author Osamu Tsuruta Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine
Author Sumio Tsuda Department of Gastroenterology, Fukuoka Uniersity Chikushi Hospital
[ Summary ] We used a magnifying and Autofluorescence imaging (AFI) enhanced colonoscopy, and inspected about an ability of detection of the lesion in the large intestine. It took effect for 107 cases by three institutions combination. The observation range limited it to the rectum/sigmoid colons from an anus to 30cm, and the three same practiced endoscopist performed white-light and AFI observation. Between both, we examined about detection, shape, size and pathology of the discovery lesion. As a result, it was thought that we could expect the effectiveness in detection ability for the flat type lesion equal to or less than tumor diameter 5mm by the AFI observation, However, it was thought that further examination was necessary about the qualitative diagnosis.
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