在L5椎弓根最小轴的横断面宽度比例最大。
The ratio of the transverse plane width to the least axis of pedicle was largest at L5.
于左心长轴观、心尖或胸骨旁四腔观以及反流束横断面方位显示偏心性反流束的整体形态，评价二尖瓣的反流程度。
Its stereoscopic shape was observed in long views, the apical and parasternal four chamber views of left ventriculum and its regurgitant extent were estimated.
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