目的:评价多排CT(multi-detector computed tomography,MDCT)在结肠直肠癌术前分期中的应用价值,为临床选择合理的治疗方案提供依据。方法:收集自2010年1月至2012年12月经手术及病理证实且具备完整MDCT影像资料的136例结肠直肠癌患者,以Burton等的分期标准对术前CT影像资料进行分期,并与术后临床TNM分期对照。计算MDCT诊断结肠直肠癌的准确率,分析MDCT术前结肠直肠癌分期与临床术后分期间的一致性。结果:MDCT对结肠直肠癌TNM术前分期诊断的准确率,T分期为77.0%、N分期为71.2%、M分期为99.3%;MDCT对结肠直肠癌的术前分期诊断与术后临床分期一致性较高。结论:MDCT是一种无创、快捷、准确的检查方法,能为结肠直肠癌临床治疗方案的制定提供主要依据,对结肠直肠癌的术前分期诊断具有较高的应用价值。 Objective: To evaluate the value of multi-detector computed tomography (MDCT) in the preoperative staging of colorectal cancer and provide the basis for choosing a reasonable treatment plan. Methods: Thirty-six patients with colorectal cancer who were confirmed by surgery and pathology from January 2010 to December 2012 with complete MDCT images were enrolled. The data of preoperative CT were staged using Burton et al staging criteria and compared with postoperative Clinical TNM staging control. The accuracy of MDCT in the diagnosis of colorectal cancer was calculated, and the consistency between preoperative and postoperative colorectal cancer staging of MDCT was analyzed. Results: The accuracy of MDCT in the preoperative staging of TNM for colorectal cancer was 77.0%, 71.2% for N stage and 99.3% for M stage. The preoperative staging of MDCT for colorectal cancer was consistent with the clinical stage Sex is higher. Conclusion: MDCT is a noninvasive, fast and accurate examination method, which can provide the main basis for the clinical treatment of colorectal cancer and has a high value for the preoperative staging diagnosis of colorectal cancer.