INTESTINE Vol.8 No.6(4-1)


特集名 大腸癌検診を考える
題名 新しい検診法の可能性 (1) MDCTを用いたvirtual enema / virtual colonoscopy による大腸癌検診 b. 本邦における臨床応用の可能性と問題点
発刊年月 2004年 11月
著者 永田 浩一 昭和大学横浜市北部病院消化器センター
著者 遠藤 俊吾 昭和大学横浜市北部病院消化器センター
著者 工藤 進英 昭和大学横浜市北部病院消化器センター
著者 太齋 圭輔 昭和大学横浜市北部病院放射線部
著者 守屋 克之 昭和大学横浜市北部病院放射線部
【 要旨 】 要旨はありません。
Theme Strategy of colon cancer screening
Title CT air contrast enema and CT colonoscopy for colorectal cancer screening -- Not yet ready for routine clinical use in Japan
Author Koichi Nagata Digestive Disease Center, Showa University Northern Yokohama Hospital
Author Shungo Endo Digestive Disease Center, Showa University Northern Yokohama Hospital
Author Shin-ei Kudo Digestive Disease Center, Showa University Northern Yokohama Hospital
Author Keisuke Dasai Radiology Section, Showa University Northern Yokohama Hospital
Author Katsuyuki Moriya Radiology Section, Showa University Northern Yokohama Hospital
[ Summary ] Colorectal cancer screening, by means of fecal occult blood tests (FOBT), conventional colonoscopy, and barium enema X-rays is generally accepted and has proven to be effective in reducing colorectal cancer incidence and mortality in Japan. Conventional colonoscopy is the best available method for detection of colorectal cancer. The level of technology and popularity of conventional endoscopy in Japan is among the highest in the world. But, new ideal screening examinations, with high sensitivity / specificity, comfort, ease, minimal invasiveness, and low cost are required. In North America and Europe, the clinical application ofCT colonography for colorectal cancer screening has started. 3D-CT has advantages and disadvantages in the detection of colorectal cancer. 3D-CT, as a type of preoperative examination, has high sensitivity and specificity for detection of colorectal cancer. 3D-CT is a less invasive examination compared to barium enema X-rays and conventional colonoscopy. However, CT enemas and CT colonography are still inferior to colonoscopic examination for the diagnosis of colorectal cancer, especially for flat lesions. Before 3D-CT can be generally recommended for colorectal cancer screening in Japan, further improvements in the detection of flat and small lesions must be achieved.
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