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目的探讨经颅多普勒超声(TCD)对眩晕患者的诊断价值。方法对100例眩晕患者进行TCD检测分析,利用德国DWL-L1型TCD超声仪,探查双侧椎动脉及基底动脉,观察收缩期血流速度(Vp)、平均流速(Vm)、搏动指数(PI)的变化。结果在100例眩晕患者中,TCD检测均以低流速为主,Vp<40cm/s占62%为主要讨论对象。结论TCD具有准确、安全、无创伤性、可重复性强等特点,对判断脑缺血程度、确定病变血管及病因的诊断均有重要价值,有助于眩晕患者的早期定位和定性诊断,应成为眩晕患者首选的检测手段。
Objective To investigate the diagnostic value of transcranial Doppler ultrasound (TCD) in patients with vertigo. Methods One hundred patients with vertigo were examined by TCD. The bilateral vertebral artery and basilar artery were probed with German DWL-L1 TCD system. Vp, Vm, PI )The change. Results In 100 cases of vertigo patients, TCD was mainly based on the low flow rate and Vp <40cm / s was 62%. Conclusion TCD is accurate, safe, non-invasive and reproducible. It has important value in judging the degree of cerebral ischemia and in the diagnosis of pathological vessels and etiology, which is helpful for the early diagnosis and diagnosis of vertigo. Become the preferred detection means for patients with vertigo.