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目的探讨椎动脉经颅多普勒(TCD)、磁共振动脉造影(MRA)、脑干诱发电位(BAEP)及椎动脉超声对椎动脉狭窄或变异的诊断价值。方法对89例椎基底动脉缺血患者进行椎动脉TCD、MRA、BAEP及椎动脉超声等检查。结果89例患者中椎动脉TCD异常74例(83.15%),MRA异常47例(52.81%),椎动脉B超异常46例(51.69%),BAEP异常40例(44.94%)。椎动脉TCD可清晰地反映血管的血流速度和方向,间接地反映血管狭窄,椎动脉MRA能清楚地显示血管病理形态,TCD异常率与动脉硬化和颈椎病有关,MRA的异常率与患者的病程长短有关。结论椎动脉TCD、MRA、BAEP及椎动脉超声4种方法合用,有助于全面客观地诊断椎动脉狭窄或变异。
Objective To investigate the diagnostic value of transcranial Doppler (TCD), magnetic resonance angiography (MRA), brainstem response potential (BAEP) and vertebral artery ultrasound in the diagnosis of vertebral artery stenosis or variability. Methods 89 cases of vertebrobasilar ischemia in patients with vertebral artery TCD, MRA, BAEP and vertebral artery ultrasound examination. Results TCD was abnormal in 74 cases (83.15%), MRA was abnormal in 47 cases (52.81%), abnormal vertebral artery in 46 cases (51.69%) and BAEP was abnormal in 40 cases (44.94%). Vertebral artery TCD can clearly reflect the blood flow velocity and direction, indirectly reflect vascular stenosis, vertebral artery MRA can clearly show the vascular pathology, TCD abnormal rate and atherosclerosis and cervical spondylosis, MRA abnormalities and patients Length of the course of the disease. Conclusion The combination of four methods of TCD, MRA, BAEP and vertebral artery can help to diagnose the vertebral artery stenosis or variability completely and objectively.