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目的：评价经颅多普勒超声检测脑动脉硬化程度对新发脑梗死的预测价值。方法170例连续纳入的疑诊脑动脉硬化症的神经内科门诊患者行经颅多普勒超声检查并随访6个月，评价动脉硬化程度与6个月内新发脑梗死的相关性。结果经Spearman等级相关分析，经颅多普勒超声检测所示脑动脉硬化程度与6个月内新发脑梗死的相关系数为0．575（P＜0．05），呈正相关。结论经颅多普勒超声检查，脑动脉硬化程度越高，6个月内新发脑梗死的可能性越大。

Objective To assess the predictive value of cerebral arteriosclerosis to acute cerebral infarction evaluated by transcranial doppler ultrasound .Methods 170 cases suspected cerebral arteriosclerosis consecutively enrolled were given transcranial doppler ultrasound and were followed up for 6 months,then we assessed the correla-tion between the levels of cerebral arteriosclerosis and acute cerebral infarction within 6 months.Results By Spearman rank correlation analysis ,there was positive correlation between the severity of cerebral arteriosclerosis de-tected by transcranial doppler ultrasound and acute cerebral infarction within 6 months,the correlation coefficient was 0.575(P<0.05).Conclusion Through the detection of transcranial doppler ultrasound ,the higher levels of cere-bral arteriosclerosis,the greater probability of acute cerebral infarction within 6 months.