组织多普勒成像技术对心肌梗死再灌注治疗的评估

Assessment on reperfusion therapy of myocardial infarction by Doppler tissue imaging

超声组织多普勒(tissue Doppler imaging,TDI)作为组织速度成像技术是一种非创伤定量检测局部心肌功能方法。TDI敏感性、无创、操作方便,准确性、特异性均优于常规超声心动图。与PET-CT、心脏磁共振显像比较,TDI检测几乎不受急性冠脉综合征发病后时间限制。对冠心病心肌缺血、急性心肌梗死及再灌注治疗后局部心肌功能改变、心室重塑的预测作用良好,对研究冠心病局部心肌功能变化特征意义重要,并可用于评估冠脉再灌注疗效。

Tissue Doppler imaging（TDI）,also known as tissue velocity imaging,is currently accepted as a noninvasive,sensitive and accurate echocardiographic tool for quantitative assessment of cardiac function.In the past decade,numerous studies have been published addressing the high feasibility,potential clinical applicability and excellent reproducibility of TDI and its derived parameters.Comparison with PET-CT and cardiac magnetic resonance imaging,and conventional two-dimensional echocardiography methods,TDI offers the advantages of assessment of myocardial ischemia,an early estimation of the regional myocardial dysfunction due to ischemia and the extent of myocardial salvage of coronary reperfusion,left ventricular remodeling,and in addition might serve the clinician as a useful screening tool of regional myocardial function and evaluation method of effect of the reperfusion therapy.