颈动脉低回声斑块超声造影增强特征与急性缺血性脑血管病的相关性研究

Correlation between the contrast-enhanced ultrasonography appearance of low-echo carotid plaques and occurrence of acute ischemic cerebrovascular disease

目的:探讨颈动脉低回声斑块超声造影增强特征与急性缺血性脑血管病发生的相关性。方法:将164例颈动脉低回声斑块患者(斑块总数164个),根据临床症状及MRI检查结果分为梗死组与非梗死组,梗死组又分为新发梗死组与陈旧梗死组,对斑块超声造影增强特征进行分级,分别比较梗死组与非梗死组、新发梗死组与陈旧梗死组斑块超声造影增强特征。结果:梗死组与非梗死组同侧颈动脉低回声斑块1、3级增强率比较差异有统计学意义(P<0.05),新发梗死组与陈旧梗死组同侧颈动脉低回声斑块1、3级增强率比较差异有统计学意义(P<0.05)。结论:颈动脉低回声斑块超声造影增强程度与急性缺血性脑血管病的发生密切相关。

Objective： To investigate the correlation between the contrast-enhanced ultrasonography appearance of low-echo plaque and occurrence of acute ischemic cerebrovascular disease.Methods： One hundred and sixty-four patients（ 164 low-echo plaques） were enrolled and divided into two groups： cerebral infarction group and noncerebral infarction group according to the clinical symptoms and results of MRI.Patients with cerebral infarction were divided into new cerebral infarction group and old cerebral infarction group.The characteristics of plaques in contrast-enhanced ultrasonography were categorized,analyzed and compared.Results： Comparison between the cerebral infarction group and non-cerebral infarction group showed statistical differences in the ratio of plaque enhancement of grade 1 and 3（ P 〈 0.05）,so did the new cerebral infarction and old cerebral infarction group（ P 〈0.05）.Conclusion： Carotid low-echo plaque contrast enhancement is closely associated with acute ischemic cerebrovascular disease.