摘要
目的 探讨颈动脉内径狭窄小于 70%的短暂性脑缺血发作患者(TIA)脑梗死发病和颈动脉粥样硬化斑块的关系。方法 颈动脉内径狭窄小于 70% 的TIA患者 123人,采用二维及Doppler超声观察颈动脉有无粥样硬化斑块及其类型,并随访脑梗死的发生率。结果 114例患者完成观察,平均随访 14. 6个月,发生脑梗死 12例,其中无斑块组患者脑梗死年发生率为 1. 9%,稳定性斑块组为 4. 7%,不稳定性斑块组为 15. 4%,后者明显高于前二者。结论 超声可对颈动脉粥样斑块分型,有助于预测TIA患者脑梗死的发病风险。
Objective To evaluate the significance of the carotid atherosclerosis plaque for brain infarction in patients with transient ischemic attack(TIA), whose carotid diameter stenosis was smaller than 70%. Methods One hundred and twenty three patients in TIA were followed up, the atherosclerosis plaque were studied with two dimensional and Doppler ultrasonography, the significance of plaque for brain infarction was studied. Results One hundred and fourteen patients whose average duration of follow up was 12.6 months finished study, 12 patients suffered from brain infarction. The annual incidence of brain infarction of patients with vulnerable plaques was 15.4%, which was higher than that of patients without plaque and patients with stable plaques, whose annual incidence of brain infarction were 1.9% and 4.7% respectively. Conclusion Characteristics of carotid atherosclerosis plaque as evaluated by ultrasonography are useful in the indication of brain infarction in patients with transient ischemic attack.
出处
《中国医学影像技术》
CSCD
北大核心
2005年第2期226-228,共3页
Chinese Journal of Medical Imaging Technology
关键词
超声检查
颈动脉
粥样硬化
脑血管疾病
Ultrasonography
Carotid artery
Atherosclerosis
Cerebrovascular disease
