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[目的]探讨CT血管成像(CTA)对缺血性脑卒中后侧支循环建立评价及其临床意义.[方法]选择本院2014年1月至2015年10月收治的75例缺血性脑卒中患者为研究对象,根据CT A评价患者侧支代偿情况,据此将其分为侧支循环组与无侧支循环组,比较两组影像学检查结果、治疗前后神经功能缺损评分(NIHSS)及随访1年预后情况.[结果]侧支循环组单发病灶、闭塞率分别为68.89%、48.89%,显著高于无侧支循环组的40.00%、16.67%(P <0.05);侧支循环组治疗前、治疗后3个月、治疗后1年NIHSS评分分别为(8.17 ± 1.02)分、(3.20 ± 1.75)分、(0.88 ± 0.76)分,显著低于无侧支循环组的(10.35 ± 1.28)分、(5.07 ± 1.89)分、(2.76 ± 1.28)分,差异有统计学意义(P <0.05);侧支循环组治疗后1年预后良好率68.89% 显著高于无侧支循环组的43.33%(P <0.05).[结论]侧支循环建立与血管狭窄程度密切相关,对临床疗效及预后具有一定的评估价值.“,”[Objective]To explore the value of collateral circulation in evaluating clinical curative effect and prognosis of patients with ischemic stroke.[Methods]Seventy-five patients with ischemic stroke admitted to our hospital between January 2014 and October 2015 were analyzed retrospectively.According to CT angiography (CTA),collateral compensation was evaluated,and according to this,the subjects were divided into collateral cir-culation group and non collateral circulation group.The imaging findings,neurological deficit scores(NIHSS)be-fore and after treatment and prognosis in 1-year follow-up were compared between the two groups.[Results]The incidence rates of single lesion and occlusion in collateral circulation group(68.89%,48.89%)were significantly higher than those in non collateral circulation group(40%,16.67%)(P <0.05);The NIHSS scores in the col-lateral circulation group before treatment,3 months and 1 year after treatment[(8.17 ± 1.02),(3.20 ± 1.75), (0.88 ± 0.76)]were significantly lower than those in the non collateral circulation group[(10.35 ± 1.28),(5.07 ± 1.89),(2.76 ± 1.28)](P<0.05);1 year after treatment,the excellent and good rate of prognosis in the collateral circulation group(68.89%)was significantly higher than that in the non collateral circulation group(43.33%)(P<0.05).[Conclusion]The establishment of collateral circulation is closely related to the degree of vascular steno-sis,which is of certain value in evaluating the clinical curative effect and prognosis.