Conclusions the efficacy of magnetic pillow was associated with the change of blood speed in PCA, VA, BA.

结论磁石枕的疗效与PCA、VA、BA的脑血流速度改善有密切关系。

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Methods:A series of 49 patients with cervical spondylosis were firstly used routine TCD to test their BA and VA, and then neck-turning test were used.

方法：对49例颈椎病患者基底动脉（BA）、双椎动脉（VA）先行常规TCD检测后加做转颈试验，观察其血流速度等血流动力学变化。

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Objective To investigate the effects of unequal vertebral artery(VA) blood flow on the pontine or cerebellar infarcts between the basilar artery(BA) curvature and the vertebrobasilar arteries.

目的探讨椎动脉优势对基底动脉弯曲及椎基底动脉连接部位脑桥和小脑梗死的影响。

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