AIM Evaluating the relation of pathologic changes to myocardial motion in rheumatic mitral stenosis(MS) to search the non-invasive methods to predict the cardiac function of rheumatic mitral stenosis patients after replacement of mitral valve.
组织多普勒成像(Doppler tissue imaging,DTI)技术可选择性地实时显示心肌运动的方向和速度，为定量分析心肌运动和心肌的收缩和舒张功能提供了一种准确可靠的新方法。