老年颈椎病伴眩晕患者的椎动脉超声多普勒检测分析

Ultrasonic Doppler Measurement and Analysis on Vertebral Artery of Senile Cervical Spondylosis with Vertigo

目的：用超声多普勒观察老年颈椎病患者的椎动脉形态结构和血流动力学变化。材料和方法：应用超声多普勒诊断仪，探头５．０～７．５ＭＨｚ，检测１４１例老年颈椎病患者的椎动脉（ＶＡ），观察形态与结构变化，获取收缩期峰值流速（ＭＡＸ）、舒张末期流速（ＭＩＮ）、时间平均流速（ＴＡＭＸ）、内径（Ｄ），并与２００例健康老人进行对照分析。结果：病变组椎动脉弯曲显著增多。Ｄ、ＭＡＸ、ＭＩＮ、ＴＡＭＸ与健康组有显著性差异（Ｐ＜０．０５，Ｐ＜０．０１），左右差增大。结论：颈椎病所致ＶＡ形态与结构改变是引起血流动力学变化的解剖学基础，而左右椎动脉流速的失衡状态则导致了椎基底动脉供血不足。

Purpose:The morphological structure and hemodynamic changes of vertebral artery of senile cervical spondylosis were observed by means of Ultrasonic Doppler measurement.Materials and Methods:141cases of senile cervical spondylosis were measured at vertebral artery (VA) with 5.0-7.5 MHz probe of Ultrasonic Doppler,to find morphological changes and Maximum(MAX),Minium (MIN),Time Average Maximum(TAMX),Diameter(D) At the same time,the controlled analysis were performed on 200 cases of the healthy aged.Results:The measurement shows the vertebral arteries of the patients with senile cervical spondylosis bends more severely than the healthy group.There is a remarkable difference between two groups (P<005,P<001) on D,MAX,MIN,TAMX,the difference between left and right vertebral arteries increases.Conclusion:The morphological changes of VA brought about by cervical spondylosis are anatomic foundation leading to hemodynamic changes,while the imbalance state of the blood flow velocity on both side VA have caused vertebrolis basilas insufficiency.