Objective To probe the value of mitral annulus peak systolic flow velocity and systolic displacement in evaluating left ventricular systolic function of dilated cardiomyopathy patients.
目的探讨二尖瓣环收缩期峰值速度及收缩期位移评价扩张型心肌病患者左室收缩功能的价值。
It is found that the relationship between cutting stress and displacement can be divided into two types of gradually hardening and softening alter peak value.
由试验资料发现，剪切面上的剪切应力与剪切位移关系可分为逐渐硬化和峰值后软化两种类型。
Objective to probe the value of mitral annulus peak systolic flow velocity and systolic displacement in evaluating left ventricular systolic function of dilated cardiomyopathy patients.
目的：通过超声心动图评价二尖瓣器形态改变与二尖瓣返流程度之间的关系及其临床意义。
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