臨牀消化器内科 Vol.23 No.2(3-2)


特集名 大腸癌のスクリーニング検査の現状
題名 virtual colonoscopyによるスクリーニングの現状 (2) MRIによるcolonography
発刊年月 2008年 02月
著者 細沼 知則 埼玉医科大学国際医療センター包括的がんセンター消化器外科
【 要旨 】 1994年にViningらによってCT colonographyが発表されて以来，欧米ではCT colonographyの有用性が数多く報告されてきた．しかし前処置や検査時に被検者が強いられる苦痛，X線被曝など，いくつかの問題点がある．これらの問題点を改善する大腸スクリーニング法としてfecal tagging法を用いたdark lumen MR colonographyがWeishauptらによって報告された．本稿では，自験例を交え，fecal tagging法を用いたdark lumen MR colonographyの有用性を報告した．また，近年画像診断法の進歩は急速であり，現在よりも高画質なvirtual MR colonographyが得られると考えられる．
Theme Current Status of Colorectal Cancer Screening
Title Colon Cancer Screening Using MR Colonography
Author Tomonori Hosonuma Department of Gastrointestinal Surgery, Saitama Medical University International Medical Center
[ Summary ] The utility of CT colonography has been reported on in Europe and America since CT colonography was introduced in 1994 by Vining. However, there are some problems with this modality, such as pretreatment, pain during examinations and exposure to radiation. Dark lumen MR colonography, in which the fecal tagging method is used for large bowel screening, may help eliminate these problems, as reported by Weishaupt. By this report, examples of experiments and examining the utility of dark lumen MR colonography, using the fecal tagging method are reported. In addition, rapid progress has been made in imaging diagnostic method. It is thought that high resolution virtual MR colonography will soon be developed.
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