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目的联合颈部血管彩超、TCD 对前循环脑动脉粥样硬化患者侧支循环建立情况进行评价。方法选择急性前循环脑梗死患者,发病2周内完成颈部血管彩超、TCD 检查,根据检查结果选择颈内动脉或大脑中动脉(MCA)闭塞患者,评价侧支循环。结果单侧颈内动脉狭窄组 nVm_(ACA)/nVm_(MCA)(1.15±0.46)大于对照组(0.90±0.34),且 nVm_(ACA)/nVm_(MCA)>1.25出现率(14例)高于对照组(2例),dVm_(PCA)/nVm_(PCA)(1.08±0.24)与对照组 LV_(PCA)/RVm_(PCA)(1.00±0.17)比较差异无统计学意义,dVm_(PCA)/nVm_(PCA)>1.2出现率(12例)高于对照组(2例);单侧大脑中动脉狭窄组 dVm_(ACA)/nVm_(MCA)(1.12±0.37)与对照组 RVm_(ACA)/LVm_(MCA)(0.93±0.32)比较差异无统计学意义,dVm_(ACA)/nVm_(MCA)>1.0出现率(13例)大于对照组(7例),dVm_(PCA)/nVm_(PCA)(1.07±0.29)与对照组 LVm_(PCA)/RVm_(PCA)(1.00±0.17)比较差异无统计学意义,且 dVm_(PCA)/nVm_(PCA)>1.2出现率(7例)与对照组(2例)比较差异无统计学意义。结论在颈部血管彩超、TCD 确定颅外或颅内动脉狭窄或闭塞后,TCD所测的数据可提供有关侧支循环的定性和半定量的信息,初步分析侧支建立情况。
Objective To evaluate the establishment of collateral circulation in patients with anterior circulation cerebral atherosclerosis by TCD. Methods Acute anterior circulation cerebral infarction patients were selected. Within 2 weeks after the onset of the disease, cervical vascular ultrasonography and TCD were performed. According to the results of the study, patients with MCA or MCA occlusion were selected to evaluate collateral circulation. Results nVm ACA / nVm MCA was 1.15 ± 0.46 in the unilateral carotid artery stenosis group, which was significantly higher than that in the control group (0.90 ± 0.34), and nAm ACA / nVm MCA> 1.25 occurred in 14 cases There was no significant difference in the dVm PCA / PCV 1.08 ± 0.24 vs PCA PC / 1.00 ± 0.17 in the control group (2) (n = 12) was significantly higher than that of the control group (n = 2); the ratio of dVmA (ACA) / nVm MCA in unilateral middle cerebral artery stenosis group (1.12 ± 0.37) (PCA) / nVm_ (PCA) (0.93 ± 0.32), there was no significant difference between the two groups (dVm ACA / nVm MCA> 1.0) (1.07 ± 0.29) and PCa / PCa (1.00 ± 0.17) in the control group, respectively. There was no significant difference between the two groups (PCa> 1.2%) There was no significant difference between the two groups (2 cases). Conclusions After TCD and TCD are used to determine the extracranial or intracranial arterial stenosis or occlusion, the data measured by TCD can provide qualitative and semi-quantitative information about the collateral circulation, and the initial analysis of the establishment of collateral circulation.