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目的探讨采用超声检查颈动粥样硬化斑块稳定性与脑梗死的发病关系。方法颈动脉内径狭窄小于70%TIA患者178人,采用彩色多普勒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178例患者完成研究,平均随访18.2个月,发生血栓栓塞性脑梗死15例,其中无斑块组年发生率1.9%,稳定性斑块组为5.7%,不稳定斑块组为12.5%,后者明显高于前两组。结论采用彩超评价颈动脉粥样斑块稳定性有助于预测TIA患者脑梗塞的发病风险。
Objective To investigate the relationship between the stability of carotid atherosclerotic plaques and the incidence of cerebral infarction by ultrasonography. Methods Totally 178 patients with less than 70% TIA were examined with color Doppler ultrasound to detect the presence or absence of atherosclerotic plaques and their types in the carotid artery. The incidence of cerebral infarction was followed up. Results A total of 178 patients completed the study. The average follow-up period was 18.2 months. Thromboembolic infarction occurred in 15 cases. The incidence of non-plaque group was 1.9%, that of stable plaque group was 5.7%, that of unstable plaque group was 12.5% , Which was significantly higher than the first two groups. Conclusion The evaluation of carotid atherosclerotic plaque stability by color Doppler ultrasound is helpful to predict the risk of cerebral infarction in patients with TIA.