Results: The sonographic manifestations in the ipsilateral course variation vertebral artery revealed that the diameter and flow velocity were decreased, PI and RI were increased.
Results: The sonographic manifestations in the ipsilateral course variation vertebral artery revealed that the diameter and flow velocity were decreased, PI and RI were increased.
结果：椎动脉走行变异其变异侧椎动脉超声表现为：管径较窄，PI和RI较高，流速较低。