主动脉弓上MRA检查对缺血性脑血管病的意义

Clinical value of 3D-TOF MRA of upper arcus aortae in the patients with ischemic cerebrovascular diseases

目的评价主动脉弓上TOF MRA检查对缺血性脑血管病的诊断、治疗及预防的价值。方法回顾性分析该科诊治的缺血性脑血管病200例患者的头颈MRI+MRA加主动脉弓MRA联合扫描(以下简称主动脉弓上MRA)资料。结果61例患者血管未见异常,7例仅发现一侧椎动脉细小,其余132例患者发现299处血管狭窄闭塞。颅外血管狭窄占33.4%(100/299),颅内血管狭窄占66.6%(199/299);发现颈动脉系统病变占67.6%(202/299),椎基底动脉系统病变占32.4%(97/299);血管闭塞或重度狭窄率高,约43.1%(129/299);发现无症状动脉瘤3例。结论主动脉弓上MRA可以及时发现脑血管狭窄,特别是及时发现颅外段严重病变,为诊断治疗及预防提供指导。

【Objective】To investigate the applicable value of 3D-TOF MRA of upper arcus aortae in the diagnosis treatment and prevent for patients with ischemic cerebrovascular diseases （ICVD）.【Methods】The clinical,MRI of brain and cervical and MRA of arcus aortae data from 200 patients with ICVD were analyzed restrospectively. 【Results】61 patients with ICVD were not found artery abnormal,7 patients had asymmetry vertebral artries in VA,the other 132 patients had 299 intra and extracranial artery stenosis in different degree. 3D-time of flight MRA imaging showed that most patients had two or three branch lesions in the same patients; of wich 33.4% lesions were in the external cranium （100/299）; 66.6% stenosis locations were in the internal cranium （199/299）; 67.6% lesions were in the carotid artery system （202/299）,while 32.4% lesions were in the poster artery system （97/299）. The ratio of oclussion or severity stenosis was 43.1% （129/299）,3 patients had nonsymatic artery tumour,which were confirmed by DSA. 【Concusion】MRA of upper arcus aortae could find artery stenosis in time,especially extracranial artery stenosis,which might play an important role in diagnosis,treatment and prevent for ICVD.