目的研究64排CT对肠壁缺血性 病变的临床诊断价值及意义。方法 回顾 性分析2013年11月-2014年11月住院部及 门诊部收治的32例肠壁缺血性病变患者 的CT诊断结果、临床资料等，并与临床 病理组织检查结果进行对比，以判断CT 的诊断价值。结果 临床病理诊断患者肠 系膜下动脉狭窄占50.00%，肠系膜上、 下动脉均狭窄占31.25%，腹主动脉狭窄 占18.75%；64排CT诊断分别为46.88%、 28.12%、21.88%。以临床病理诊断为标 准，64排CT诊断的灵敏度为90.63%、准确 率为96.88%、特异性为87.5%；准确率与 临床病理诊断比较无明显差异；灵敏度 和特异性与临床病理诊断比较χ2 =9.37、 12.70；P＜0.05，差异具有统计学意义。 结论 64排CT对肠壁缺血性病变的临床诊 断率高，且无创、及时、安全性高，具有 较高的临床使用价值和实践意义。

Objective This paper is to discuss clinically diagnostic value and significance of 64-slice CT on ischemic lesions of intestinal wall. Methods CT diagnosis results and clinical data of thirty-two patients with ischemic lesions of intestinal wall admitted by Inpatient Department and Outpatient Department from November, 2013 to November, 2014 were retrospectively analyzed, and they were compared to results of clinically histopathologic examination to determine diagnostic value of CT. Results The number of patients suffering from the stenosis of inferior mesenteric artery by clinically pathological diagnosis accounted for 50.00%, and the number of patients suffering from superior and inferior artery of mesenterium occupied 31.25%, and the number of patients suffering from abdominal aortic stenosis hit 18.75%, 64-slice CT diagnosis for abovementioned diseases was 46.88%, 28.12% and 21.88% respectively. According to clinically pathological diagnosis, the sensitivity, accuracy and specificity of 64-slice CT hit 90.63%, 96.88% and 87.5% respectively. There was not obvious difference in the comparison between accuracy and clinical pathological diagnosis. The comparison between sensitivity & specificity and clinically pathological diagnosis satisfied X squared X2 = 9.37 and 12.70 respectively (P < 0.05), and the difference was statistically significant. Conclusions 64-slice CT delivers high clinically diagnostic rate on ischemic lesions of intestinal wall, and it is noninvasive, timely and highly safe, imposing highly clinical use value and practical significance.