目的研究CT对结肠癌的的术前 诊断及评价术后复发的临床价值。方法 选取2013年6月-2014年6月住院部收治的 30例结肠癌患者为研究对象，通过CT扫描 对其进行术前病情分期评估和术后复发监 测，以病理诊断为金标准进行评价。结果 CT诊断Ⅰ期、Ⅱ期结肠癌术前分期准确 率与病理组织诊断结果相比χ2 =14.97、 16.13，术后分期Ⅰ期、Ⅱ期与病理组 织诊断结果相比χ2 =66.33、39.32；P 均＜0.05，差异有统计学意义。Ⅲ期、 Ⅳ期结肠癌手术前、后诊断准确率均为 100.00%。结论 采用CT可评估结肠癌术前 分期，监测术后复发和转移情况，可清楚 显示其相邻组织的受侵情况，提示淋巴 结、远处脏器转移情况，诊断准确性高， 具有较高的临床应用价值。

Objective To investigate the clinical value of CT on preoperative diagnosis of colon cancer and diagnosis of postoperative recurrence. Methods Thirty patients with colon cancer admitted by the inpatient department of the hospital from June, 2013 to June, 2014 were selected as research subjects, who were subject to preoperative condition assessment by stages and monitoring of postoperative recurrence through CT, and simultaneously CT diagnosis were evaluated with pathological diagnosis as the standard. Results The comparison between preoperative staging accuracies of CT in the diagnosis of colon cancer at Period I and Period Ⅱ and diagnosis results of histopathologic tissue satisfied χ2 =14.97 and 16.13 respectively, the comparison between postoperative staging accuracies at Stage Ⅰ and Stage Ⅱ and diagnosis results of histopathologic tissue satisfiedχ2 =66.33 and 39.32 (average P<0.05), and the differences were statistically significant. Both diagnostic accuracies in StageⅢ and Stage Ⅳbefore operations were 100.00%. Conclusions CT could be used for the assessment of preoperative staging of colon cancer, evaluate the recurrence and metastasis, demonstrate the tumor infiltrating of the adjacent tissue, and prompt the metastasis of lymph nodes and distant organs. The diagnostic accuracy of CT is high and deserve widely used in clinical.