研究二尖瓣腱索破裂（RMCT）的彩色多普勒超声心动图特征。

Study the characteristics of the color Doppler echocardiography of ruptured mitral chordae tendineae (RMCT).

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目的：探讨二尖瓣腱索断裂的彩超特征和病因病理改变。

Objective:To study the characteristics of the color Doppler echocardiography of ruptured mitral chordae tendineae (RMCT) and its etiology and pathology.

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结果收缩期脱垂的二尖瓣表面粗糙并向左房膨出，可伴有腱索异常。

Results The surfaces of the prolapsed mitral valves showed rough and accompanied with abnormal tendinous chordae , and their bodies projected into left atrium during systole.

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