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目的 评价颈动脉狭窄无创性影像学检查方法的临床应用价值 ,探讨颈动脉狭窄与缺血性脑血管病之间的联系。 材料与方法 对 15例 30支颈动脉行多普勒超声 (DUS)、磁共振血管造影 (MRA)及头部 CT& MRI检查。其中 5例同时行颈动脉 CT血管造影 (CTA) ,4例与 DSA对照 ,6例颈动脉重度狭窄者行颈动脉内膜切除术。 结果 15例 30支颈动脉 :轻度狭窄 (<30 % ) 8支 ,中度狭窄 (30 %～ 6 9% ) 6支 ,重度狭窄 (70 %～ 99% ) 8支 (均为一侧 ) ,闭塞 2支 ,未见狭窄 6支。 8支颈动脉重度狭窄者狭窄侧腔隙性脑梗死 5例 ,狭窄对侧皮层梗死 1例 ,双侧脑梗死 1例 ,未见异常 1例。颈动脉闭塞侧大脑中动脉分布区脑梗死 2例。 CTA显示硬化斑块 3例。 结论 颈动脉狭窄与脑梗死的发生、发展密切相关。 DUS、MRA、CTA结合使用能够在颈动脉狭窄的筛选、诊断、监测中发挥重要作用
Objective To evaluate the clinical value of noninvasive imaging examination of carotid stenosis and to explore the relationship between carotid artery stenosis and ischemic cerebrovascular disease. Materials and Methods Doppler ultrasound (DUS), magnetic resonance angiography (MRA) and CT & MRI were performed in 15 patients with 30 carotid arteries. Carotid artery CT angiography (CTA) was performed in 5 cases at the same time, 4 cases were compared with DSA, and 6 cases with severe carotid stenosis underwent carotid endarterectomy. Results There were 8 carotid arteries in 30 patients (mild stenosis <30%), 6 moderate stenoses (30% ~ 69%) and 8 severe stenoses (70% ~ 99% , Occlusion 2, no stenosis 6. There were 5 cases of stenotic lateral lacunar infarction in 8 patients with severe stenosis of carotid artery, 1 case of contralateral cortical infarction in stenosis and 1 case of bilateral cerebral infarction. There was no abnormality in 1 case. Two cases of cerebral infarction with cerebral infarction. CTA showed sclerosis in 3 cases. Conclusion Carotid artery stenosis is closely related to the occurrence and development of cerebral infarction. The combination of DUS, MRA and CTA can play an important role in the screening, diagnosis and monitoring of carotid artery stenosis