稍微转动注射器(4)，检查系统的严密性，耳压曲线应增加几毫米、然后稳定下来。
Check the tightness of the system by slightly turn the syringe (4), the ear pressure curve should increase by some millimetres and then stabilize.
使用高压注射器由耳缘静脉注入对比剂。
The contrast agent was administrated through the ear venous with high-pressure syringe.
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