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目的应用全脑血管造影技术探讨短暂性脑缺血发作(transient ischemic attack,TIA)的病因及发病机制。方法2007年-2009年收治TIA患者17例,行全脑血管造影检查,观察患者颈动脉系统和椎动脉系统责任血管的病变情况。结果13例有血管狭窄,占76.5%,其中单纯颅外动脉病变4例,单纯颅内动脉病变6例,颅内外联合病变3例。颈动脉系统有责任血管狭窄11例(78.6%),正常3例(21.4%);椎动脉系统有责任血管狭窄2例,正常1例。结论颅内外血管狭窄是TIA的主要病因。
Objective To investigate the etiology and pathogenesis of transient ischemic attack (TIA) using total cerebral angiography. Methods From 2007 to 2009, 17 patients with TIA were enrolled in this study. Whole brain angiography was performed to observe the pathological changes of the responsible vessels in the carotid and vertebral arteries. Results Thirteen cases had vascular stenosis, accounting for 76.5%. Among them, 4 cases had simple extracranial artery disease, 6 cases had simple intracranial artery disease and 3 cases had intracranial and extracranial disease. Carotid system was responsible for vascular stenosis in 11 cases (78.6%), normal in 3 cases (21.4%); vertebral artery system was responsible for vascular stenosis in 2 cases, normal in 1 case. Conclusion Intracranial vascular stenosis is the main cause of TIA.