方法通过DTI - M型模式检测33例健康人心尖四腔观和二腔观二尖瓣环后瓣叶外侧缘的运动。

Methods Mitral annular motion in 33 cases of normal subjects form apical four-chamber view and two-chamber view were detected with DTI-M mode.

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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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