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Evaluation of contrast-enhanced computed tomographic colonography in detection of local recurrent colorectal cancer

World Journal of Gastroenterology 2006年第1期12卷 123-126页

作者： Yau-Tong You Chung-Rong Chang Chien Jeng-Yi Wang Koon-Kwan Ng Jinn-Shiun Chen Reiping Tang Jy-Ming Chiang Chien-Yuh Yeh Pao-Shiu Hsieh Division of Colon and Rectal Surgery Chang Gung Memorial HospitalLin-KouTaiwanChina Division of Colon and Rectal Surgery Chang Gung Memorial HospitalJia-YiTaiwanChina Department of Radiology Chang Gung Memorial HospitalKee-LungTaiwanChina

AIM： TO evaluate the diagnostic accuracy, sensitivity, specificity of contrast-enhanced computed tomographic colonography in detecting local recurrence of colorectal cancer. METHODS： From January 2000 to December 2004, 434 patients after potentially curative resection for invasive colorectal cancer were followed up for a period ranging from 20 to 55 mo. Eighty of the four hundred and thirty-four patients showing strong clinical evidence for recurring colorectal cancer during the last followup were enrolled in this study. Each patient underwent contrast-enhanced computed tomographic colonography and colonoscopy on the same day. Any lesions, biopsies, identified during the colonoscopic examination, immediate complications and the duration of the procedure were recorded. The results of contrast-enhanced computed tomographic colonography were evaluated by comparing to those of colonoscopy, surgical finding, and clinical follow-up. RESULTS： Contrast-enhanced computed tomographic colonography had a sensitivity of 100%, a specificity of 83% and an overall accuracy of 94% in detecting local recurrent colorectal cancer. CONCLUSION： Conventional colonoscopy and contrastenhanced tomographic colonography can complement each other in detecting local recurrence of colorectal cancer.

关键词： Computed tomographic colonography recurrent colorectal cancer

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