Twenty two volunteers with healthy backs were scanned using a positional MRI machine, which allows patients the freedom to move - so they can sit or stand - during the test.
医院用定位核磁共振仪对22名拥有健康脊背的志愿者进行扫描。在扫描过程中，志愿者可以任意移动，坐着或是站着均可。
The results of positional nystagmus test in 87 vertigo cases with relatively definite causes were analysed.
本文对87例病因较明确的眩晕作位置性眼震试验的结果进行分析。
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