Pulsed Doppler velocities from left ventricular wall were characterized by S wave, E wave and A wave. A/E and MVG derived from MPD were the most sensitive indices and were superior to TDI and 2|DE for detection of WMA.

• S波、E波及 A波是左室壁运动脉冲多普勒频谱的三个主要特征性频移成分。