E/A, DT, IVRT, Em, Vp, Myocardial IBS, normalized IBS(IBS%), cyclic variation of IBS(CVIB),averaged CVIB(ACVIB) of interventricular septum(IVS) and left ventricular post wall(LVPW) were measured and analyzed.

• 运用IBS测量分析:室间隔(IVS)和左室后壁(LVPW )的心肌背向散射积分(IBS)、校正IBS (IBS %25 )、IBS周期变化幅度(CVIB)及左室平均CVIB (averagedCVIB ,ACVIB)。