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目的通过全脑数字减影血管造影(DSA)检查,分析短暂性脑缺血性(TIA)与供血脑动脉病变的关系,探讨TIA的发病机制。方法对临床表现为TIA的90例患者行全脑血管造影,并对患者的DSA资料进行分析,计算颅内-外动脉狭窄率,并对患者的颅内外动脉狭窄或闭塞情况进行比较。结果 90例TIA患者中有78例患者有不同程度的颅内外动脉狭窄,颅内外共198支动脉狭窄或闭塞,总异常率为86.67%(78/90),其中颅内动脉狭窄或闭塞共145支,占73.23%(145/198),颅外动脉狭窄共53支,占26.77%(53/198),颅内-外多发病变11例,共累及54支颅内外血管。结论颅内-外动脉狭窄是发生TIA的重要因素,DSA检查有助于明确VB-TIA病因,对治疗具有指导意义。
Objective To investigate the relationship between transient ischemic attack (TIA) and arterial blood supply of cerebral artery by whole brain digital subtraction angiography (DSA) and to explore the pathogenesis of TIA. Methods Totally 90 patients with clinical manifestations of TIA underwent whole-cerebrovascular angiography. The DSA data of the patients were analyzed to calculate the rate of extracranial stenosis and to compare the stenosis or occlusion of the patients with extracranial or extracranial arteries. Results Among 90 TIA patients, 78 patients had different degrees of extracranial and intracranial arterial stenosis. There were 198 intracranial and extracranial arterial stenosis or occlusion, the total abnormal rate was 86.67% (78/90), of which, intracranial artery stenosis or occlusion was 145 , Accounting for 73.23% (145/198), 53 with extracranial arterial stenosis (26.77%, 53/198), 11 with extracranial and extracranial lesions, involving 54 extracranial and extracranial vessels. Conclusion Intracranial-external arterial stenosis is an important factor in the occurrence of TIA, DSA examination helps to clarify the cause of VB-TIA, which has guiding significance for the treatment.