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Usefulness of CT Colonography in the Diagnosis, Mainly Detection, of Colonic Tumor Ryoichi Nozaki 1 , Tetsuya Matsumoto 2 , Takayuki Maezaki 2 , Syunji Ogata 3 , Kazutaka Yamada 3 1Division of Gastroenterology, Coloproctology Center, Takano Hospital, Kumamoto, Japan 2Division of Radiology, Coloproctology Center, Takano Hospital, Kumamoto, Japan 3Division of Gastroenterological Surgery, Coloproctology Center, Takano Hospital, Kumamoto, Japan Keyword: CT colonography , 大腸癌 , 大腸ポリープ , 全大腸内視鏡検査 , 注腸X線検査 pp.34-45
Published Date 2012/1/25
DOI https://doi.org/10.11477/mf.1403104780
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 We reviewed our cases to investigate the usefulness of CTC(CT colonography)in the detection of colonic tumor. Although the detection rate of colonic tumors 5 mm or larger is excellent with CTC, superficial tumors are significantly more difficult to detect with it as compared with protruding tumors. Therefore, further improvement in diagnostic ability is required. Barium enema study can be replaced by CTC as a preoperative examination for colon cancer. Preoperative simulation by contrast-enhanced CTC provides essential information for safe and rapid performance of laparoscopy-assisted surgery for colon cancer. CTC is useful as a preoperative examination method in Japan for oral-side obstruction caused by colon cancer in cases where a colonoscope has failed to pass through the obstruction. In cases where insertion of a colonoscope to the cecum is unsuccessful, CTC can be used in place of barium enema for examination of the whole large bowel. CTC is also useful in screening for extracolonic lesions. In the future, CTC is expected to be widely used in Japan as a diagnostic modality for colon cancer.


Copyright © 2012, 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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