目的：探讨经颅多普勒超声（ transcranial Doppler sonography ， TCD ）转颈试验在颈性眩晕诊断中的价值。方法选择头晕患者133例，其中颈性眩晕（观察组）67例，其他眩晕（对照组）66例。所有患者均行颈椎X线、MRI和椎动脉磁共振血管造影术以及TCD常规检查和TCD转颈试验。结果2组患者的颈部外伤病史、骨质增生、颈椎曲度异常、颈椎不稳、椎间盘突出的异常百分比无显著差异，颈痛和磁共振血管造影术椎动脉受压百分比差异有统计学意义（P＜0．05）。2组患者的常规TCD检测结果差异无统计学意义（P＞0．05）。观察组患者TCD转颈试验阳性率为80．60％（54/67），对照组为4．55％（3/66），2组间差异有统计学意义（P＜0．01）。结论 TCD转颈试验有助于颈性眩晕的诊断，可作为颈性眩晕诊断的一个客观指标。%Objective To explore the value of the transcranial Doppler sonography ( TCD) turning-neck tests on the diag-nosis of the cervical vertigo .Methods A total of 133 patients who suffered vertigo were selected in this investigation , in which 67 patients suffered cervical vertigo in observe group and 66 others suffered other kinds of vertigo in control group , and all of them were tested by cervical X-ray , cervical MRI , magnetic resonance angiography ( MRA) of vertebral artery , regular TCD test and TCD turning-neck tests .Results There had no prominent difference between 2 group in the abnormal percent-age of neck injury history , hyperosteogeny , cervical curve abnormal , the unsteadiness of cervical vertebrae and lumbar disc herniation .The difference of the percentage of cervicodynia and vertebral artery compression showed by MRA between 2 group had statistical significance(P<0.05) .The results of regular TCD test between 2 group had no difference(P>0.05).The positive rate of the TCD turning-neck tests in observe group was 80.60%(54/67), while it was 4.55%(3/66) in control group, and the difference had statistical significance (P<0.01).Conclusion The TCD turning-neck tests is helpful for the diagnosis of the cervical vertigo and will be one of objective indicators of the diagnosis .
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