主要观察指标：主动脉弓、颈内动脉及椎基底动脉系统血管结构异常的类型、分布及比例。
MAIN OUTCOME MEASURES: Type, distribution and proportion of vessel structural abnormity of aortic arch, carotid artery and vertebrobasilar system.
目的：观察天麻素和红花注射液治疗椎-基底动脉系统TIA的效果。
Objective: To observe the effect of gastrodin and safflower injection in treating TIA of vertebrobasilar system.
闭塞的颈内动脉再通14例，大脑中动脉再通29例，大脑中动脉分支再通30例，椎-基底动脉系统再通20例。
Recanalization of ICA territory was achieved in 14 cases, MCA in 29, MCA branches in 30, and vertebral-basilar artery in 20 cases.
动脉瘤几乎完全抹杀与维护流动和管腔的椎基底动脉供血系统。
Aneurysms were almost completely obliterated with preservation of the flow and lumen of the vertebrobasilar system.
有颅内血管狭窄者占15.7%，其中颈动脉系统狭窄者占14.6%，椎一基底动脉系统狭窄者占1.1%。
Fourteen patients (15.7%) had significant intracranial stenosis with 14.6% in the carotid and 1.1% in the vertebrobasilar system.
有颅内血管狭窄者占15.7%，其中颈动脉系统狭窄者占14.6%，椎一基底动脉系统狭窄者占1.1%。
Fourteen patients (15.7%) had significant intracranial stenosis with 14.6% in the carotid and 1.1% in the vertebrobasilar system.
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