B超对老年高血压患者脑血管狭窄的诊断价值

The value of B ultrasound in diagnosis of cerebrovascular stenosis of senile hypertensive patients

目的B超对老年高血压患者脑血管狭窄的诊断价值。方法采用国产EMS9B型经颅多普勒(TCD)仪行颅底血管检测,采用美国阿帕奇RX400和GE公司vivid7pro型线阵探头彩色多普勒血流显像仪,探头频率5MHz,声束与血流的夹角为60°行颅外颈动脉血管检查。结果脑动脉血流动力学(颅内以大脑中动脉为例)测定结果显示,高血压组和对照组比较,收缩期峰值速度、舒张末期血流速度、平均血流速度、搏动指数、阻力指数差异有显著意义。结论TCD和颈动脉B超的双重检测对脑血管狭窄的诊断有较好的可靠性和准确性。

Objective To investigate the value of B ultrasound in diagnosis of cerebrovascular stenosis of senile hypertensive patients.Methods The basicranial blood vessels were examined by homemade TCD(type EMS9B);The extracranial arterial blood vessels were examined by color Doppler flow imaging(type Apachi RX-400 and GE vivid 7pro,produced by USA) with 5MHz of frequency and 60 angles between sound beam and blood flow.Results The result of cerebral artery hemodynamics(intracraninal result is exampled by MCA) showed that Vs,Vd,Vm,PI and RI of the hypertension group were significantly different from those of the control group.Conclusion The double-examination with TCD and carotid B ultrasound is reliable and accurate to diagnose cerebrovascular stenosis.