中文摘要：

目的研究颈部血管超声多普勒检查在缺血性脑梗死早期预防中的应用价值。方法选取于我院接受治疗的缺血性脑梗死患者86例,作为观察组,同期选择于我院门诊行健康体检的志愿者86例,作为对照组。对两组患者分别行颈部血管超声多普勒检查,比较两组颈动脉斑块发生率、斑块形态、斑块发生部位以及血流参数。结果观察组颈动脉斑块发生率高于对照组,差异明显,具有统计学意义（P〈0.05）;观察组及对照组颈动脉斑块均以扁平斑及硬斑为主,部位以颈动脉分叉处为主,观察组软斑及溃疡斑检出率明显高于对照组,差异具有统计学意义（P〈0.05）;观察组舒张期最小血流速度及阻力指数较对照组差异明显,具有统计学意义（P〈0.05）。结论颈部血管超声多普勒检查有助于早期发现血管斑块,通过斑块的性质、部位以及血流参数能早期预防缺血性脑梗死,临床上值得推广。

英文摘要：

[Objective]To research the application value of Doppler Sonography in the earlyprevention of ischemic cerebralinfarction. [Methods]86 cases of stroke were selected inmy hospital, called observation group, 86 volunteers were called control group. The two groups were treated with Doppler Sonography,comparison of two groups ofcarotid artery plaqueincidence rate ofplaque,plaque morphology,location andblood flow parameters.[Results]The incidencerate ofobservation group was higher than the control group, differencesareobvious,withstatisticalsignificance（P〈0.05）; The observed group and the controlgroup ofcarotid plaques areall in flat plaque andhard plaque,carotidat the intersection ofmainparts, The detection rateof soft plaque and ulcer plaqueofobservation group was higher thanthe controlgroup, differ encesareobvious,withstatisticalsignificance（P〈0.05）; The minimum flow velocityand resistance index was different, withst atisticalsignificance（P〈0.05）. [Conclusion]Doppler ultrasoundexamination is helpful to find vascular patch,through the character of plaque, site and blood flow parameters can preventischemic cerebral infarction and canbewidelyusein clinic.