目的探讨转颈试验对椎基底动脉供血不足（VBI）的诊断价值。
To determine the effects of neck rotation test in vertebral-basilar artery insufficiency(VBI).
结论：TCD及转颈试验对颈椎病的诊断有十分重要的作用，并能科学地评价V-BA血流状况。
Conclusion:TCD and neck-turning test were very important in the diagnosis of cervical spondylosis, and can scienticly evaluate blood condition of V-BA.
目的：研究脑干听觉诱发电位(BAEP)转颈试验对椎基底动脉供血不足(VBI)的诊断价值。
Objective: to study the value of turning neck test in brainstem auditory evoked potential (BAEP) on the diagnosis of vertebrobasilar insufficiency (VBI).
目的：探讨作脑干听觉诱发电位（BAEP）时进行转颈试验对椎基底动脉供血足（VBI）的诊断意义。
Objective: To explore the significance of neck rotation test of brainstem auditory evoked potentials (BAEP) in potients with vertebrobasilar insufficiency(VBI).
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。
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。
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.
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