磁共振血管造影在后循环缺血性眩晕病因诊断中的应用  

Clinical application of magnetic resonance arterial imaging(MRA)in diagnosis of posterior circulation ischemic vertigo

作　　者：延晓勇 杨兴亮[1] 崔胜宏 

机构地区：[1]陕西省榆林市第一医院影像科,719000

出　　处：《安徽医学》2013年第9期1389-1391,共3页Anhui Medical Journal

摘　　要：目的探讨磁共振血管造影(MRA)在后循环缺血性眩晕诊断中的价值。方法选择经临床及影像检查确诊的后循环缺血性眩晕36例患者,全部患者行数字减影血管造影(DSA)、MRA检查,对MRA、DSA对后循环血管异常的显示情况进行比较分析。结果 MRA检查显示左椎动脉狭窄11例,左椎动脉起始变异3例,左椎动脉迂曲5例。右椎动脉狭窄8,右椎动脉迂曲2例,基底动脉狭窄2例,大脑后动脉狭窄5例,MRA检查血管后循环血管异常率与DSA检查比较,差异无统计学意义(P>0.05)。结论 MRA可良好显示椎动脉及基底动脉的走行情况,异常血管检出率与DSA无显著差异,可为诊断、治疗提供有效支持。Objective To investigate the value of magnetic resonance arterial imaging （MRA） in the diagnosis of posterior circula- tion ischemic vertigo. Methods The data of 36 patients with posterior circulation ischemia vertigo diagnosed by clinic and imaging detection in our hospital were selected. All patients were given routine MRA, DSA examination, then the examination resuhs of posterior circulation were analyzed and compared. Results MRA examination showed left vertebral artery stenosis in 11 cases, the left vertebral artery, variation in 3 cases, left vertebral artery circuity in 5 cases, right vertebral artery stenosis in 8 cases, right vertebral artery circuity in 2 cases, basilar artery stenosis in 2 cases, and posterior cerebral artery stenosis in 5 cases. Posterior circulation vascular abnormal rate of MRA and DSA ex- amination eompared, the difference was not statistically significant. Conclusion MRA can show the traveling situation of vertebral artery and the basilar artery, and the detection rate of abnormal blood vessels is not significantly different from that of DSA, and hence it can provide effective support for the diagnosis and treatment.

关 键 词：磁共振成像 磁共血管造影 后循环缺血性眩晕 

分 类 号：R445.2[医药卫生—影像医学与核医学] R743.3[医药卫生—诊断学]