论文部分内容阅读
通过二维超声心动图(2DE)检测定量心肌缺血时的局部左室收缩功能(RLVF)。当冠脉流量(CBF)减少40％时,RLVF明显改变 RLVF异常的圆周范围比较局限;CBF减少大于70％时,RLVF完全丧失,RLVF异常的圆周范围与心肌缺血的范围基本一致。RLVF改变与CBF减少不呈线性关系,RLVF改变明显早于整体左心泵功能。
Local LV systolic function (RLVF) was quantified by two-dimensional echocardiography (2DE). When the coronary flow (CBF) decreased by 40%, RLVF significantly changed the limits of RLVF abnormal circumferences more limited; CBF decreased more than 70%, RLVF completely lost, RLVF abnormal peripheral area and myocardial ischemia consistent with the range. RLVF change and CBF reduction is not linear, RLVF changes significantly earlier than the overall left ventricular pump function.