缺血性脑卒中患者颈动脉彩色多普勒超声显像和踝臂指数对比研究  

Studies on Color Doppler Ultrasound of Carotid Artery and Ankle-brachial Index in Patients with Ischemic Stroke

作　　者：惠冉[1] 杨慧[1] 李明[1] 房勤茂[1] 

机构地区：[1]河北医科大学第三医院超声科,河北石家庄050000

出　　处：《河北北方学院学报（自然科学版）》2012年第6期68-71,共4页Journal of Hebei North University:Natural Science Edition

摘　　要：目的探讨缺血性脑卒中患者颈动脉彩色多普勒超声显像及踝臂指数(ankle-brchial index,ABI)变化的价值。方法 78例健康人为正常对照组,118例缺血性脑卒中患者为病例组。对所有观察对象行颈动脉彩色多普勒超声检查,观察是否有斑块、管腔狭窄或闭塞,测量颈内动脉管腔内径、内中膜(IMT)厚度、收缩期峰值血流速度、阻力指数、搏动指数,同时测量踝部动脉和肱动脉血压,计算ABI。结果病例组与正常对照组相比颈动脉粥样硬化率增高(P<0.01),低踝臂指数率增高(P<0.01),颈内动脉内中膜增厚(P<0.01),管腔内径及搏动指数减小(P<0.01),阻力指数减小(P<0.05),彩色多普勒超声显像诊断颈动脉粥样硬化阳性率高于踝臂指数诊断颈动脉粥样硬化阳性率(P<0.05)。结论彩色多普勒超声显像及踝臂指数测量作为一种无创检查手段,能早期发现颈动脉粥样硬化,对预报缺血性脑血管疾病有重要的临床应用价值。Objective To evaluate the change of color Doppler ultrasound in carotid and ankle-brchial index（ABI）in patients with ischemic stroke.Methods 78 healthy people were chosen as the normal control group,and the case group contained 118 ischemic stroke patients.The carotid segments of all observed objects were examined by color Doppler ultrasound to observe whether the plaque,lumen stenosis or occlusion existed or not.Measuring the lumen diameter,IMT,systolic peak flow velocity,resistance index and pulsatility index,blood pressure of ankle artery and brachial artery were surveyed to calculate ABI at the same time.Results Compared with that of the control group,carotid atherosclerosis rate,low ankle-brachial index rate and IMT of the case group increased（P0.01）,but lumen diameter and pulsatility index decreased（P0.01）,and resistance index decreased（P0.05）.Color Doppler ultrasound imaging in the diagnosis of carotid atherosclerosis-positive rate was higher than that of ankle-brachial index diagnosis（P0.05）.Conclusion As a noninvasive means,Carotid ultrasound and ankle-brachial index measurement could find carotid atherosclerosis early,which has important clinical value for forecasting the ischemic cerebrovascular disease.

关 键 词：彩色多普勒超声显像 颈动脉 踝臂指数 缺血性脑卒中 

分 类 号：R445.1[医药卫生—影像医学与核医学]