They measured the effectie regurgitant orifice and ealuated indices of mitral deformation, including systolic alular tenting and mitral annular contraction.

• 他们评价了返流时有效的二尖瓣口大小和二尖瓣异形程度，包括收缩期瓣膜的展开及二尖瓣的收缩。