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小剂量多巴酚丁胺负荷超声 (LDDSE)作为一种评价心肌存活性的方法 ,主要通过观察异常节段室壁运动的改善来评判存活心肌 ,存在一定主观性。而心肌背向散射积分(IBS)通过检测心肌结构和功能改变所引起背向信号的变化 ,推测心肌的病理变化 ,从而能无创地评价心肌存活性。本研究通
Low-dose dobutamine stress ultrasound (LDDSE) as a method to assess myocardial viability, mainly through the observation of abnormal segment wall motion to improve the survival of myocardial viability, there is a certain subjectivity. The myocardial backscatter integral (IBS) can detect the myocardial viability by predicting the pathological changes of the myocardium by detecting the change of the dorsal signal caused by the change of the structure and function of the myocardium. This research pass