磁共振血管成像、经颅多普勒及颈动脉超声对颈动脉系统短暂性脑缺血发作的诊断价值

Diagnostic value of MRA,TCD and ultrasonography in carotid territory TIAs

目的探讨磁共振血管成像(MRA)、经颅多普勒(TCD)和颈动脉超声对颈动脉系统短暂性脑缺血发作(TIA)的诊断价值.方法对42例颈动脉系统TIA患者进行MRA、TCD和颈动脉超声检测,观察其异常情况.结果颈动脉MRA异常12例(28.6%),脑MRA异常32例(76.2%),其中8例二者均异常,大多为颈动脉轻～重度狭窄;TCD异常30例(71.4%)(此30例脑MRA均异常);颈动脉超声异常16例(38.1%)(其中颈动脉MRA异常12例).结论 MRA、TCD和颈动脉超声3种方法联合应用,可对颈动脉系统TIA的病因及诊断作出客观的评价.

Objective To evaluate tile diagnostic values of MRA,TCD and uhrasonography in carotid territory transient ischemic attacks （TIAs）. Methods 42 patients with carotid territory TIAs were examined by MRA, TCD and uhrasonography. Results MRA showed abnormalities of carotid arteries in 12 cases （28.6%） and abnormalities of intraeranial arteries in 32 cases （76.2%）. 8 cases presented abnormalities both in carotid arteries and intraeranial arteries. Abnormalities of intracranial arteries were detected by TCD in 30 cases （71.4%） and abnormalities of carotid arteries were detected by uhrasonography in 16 cases （38.1% ）. Conclusion MRA, TCD and uhrasonography are useful in the evaluation of etiological factors of carotid territory TlAs.