The statistical results show that the average, the range of change, and the changing rate were augmented with ECP, i.e. the phasic characteristics of shear stress were increased.

• 统计结果表明:体外反搏使剪切应力的平均值、变化范围及变化速度都发生了变化,即增加了血流和剪切应力的脉动性。