【摘要】 目的　评估多层螺旋CT(MSCT)对临床上怀疑有结肠病变 ,但术前结肠镜检查又不成功病人的应用价值。方法　对 31例结肠镜检查失败的病人行MSCT检查 ,然后利用工作站的后处理软件获得CT仿真内窥镜 (CTVC)、多层面重建 (MPR)、表面遮盖显示 (SSD)、透亮法显示 (Raysum) 4种后处理图像。将MSCT诊断结果与结肠镜、术中探查、术后病理结果逐一对照。结果　 31例结肠镜检查不完全的病人均成功完成了MSCT检查 ,术后病理证实有结肠癌 2 2例 (包括 1例多原发癌 ,2例癌并发息肉 ) ,结肠良性病变 9例。 2 2例结肠癌病例 (包括并发病灶 )MSCT均正确诊断 ,9例良性病例中MSCT正确诊断 6例 ,2例误诊为结肠癌 ,1处息肉病变漏诊。结论　MSCT是全面评价梗阻性结肠病变的有效方法。更多还原

【Abstract】 Objective To evaluate the use of preoperative MSCT in patients with clinically suspected colorectal disease after incomplete colonoscopy Methods After incomplete colonoscopy, 31 patients underwent MSCT before and after intravenous injection of iodinated contrast agent CT virtual colonography (CTVC), multiplanar reformation (MPR), shaded surface display (SSD), and Raysum images were obtained by using 4 different software in workstation The results of MSCT were compared with the findings of colonoscopy, intraoperative colon palpation, and postoperative pathology Results After incomplete colonoscopy, MSCT was successfully performed in all 31 cases Postoperative pathology revealed 22 colorectal cancers (one synchronous cancers, two with polyps) and 9 benign disease 22 colonic carcinomas were all correctly diagnosed by MSCT (including synchronous disease), 2 benign diseases were misdiagnosed as malignancy, and one polyp was missed Conclusion MSCT is a feasible and useful method for evaluating the entire colon before surgery in patients with occlusive disease更多还原