TCD能探测循环中的微栓子信号(microembolicsignal,MES)。MES是缺血性卒中急性期的常见现象,它的出现受探测时间、探测部位、卒中原发疾病、卒中类型、凝血功能和抗血小板聚集、抗凝及溶栓治疗等因素的影响。探测脑动脉MES对缺血性卒中高危人群筛选、病因学分析、早期诊断、疗 TCD can detect circulating microembolic signals (MES). MES is a common phenomenon in the acute phase of ischemic stroke. Its appearance depends on the time of detection, the site of detection, the primary disease of stroke, the type of stroke, coagulation and anti-platelet aggregation, anticoagulation and thrombolytic therapy. Detection of Cerebral Artery MES in High-risk Ischemic Stroke Screening, Etiological Analysis, Early Diagnosis, Treatment