The statistic results show the average,range of change and changing rate were changed with acute myocardial ischemia and ECP,i.e.the phasic characteristics of shear stress were changed.

• 结果表明:急性心肌缺血和体外反搏可以使剪切应力的平均值、变化范围和变化速率发生变化,即改变了剪切应力的脉动性。