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目的：定量分析急性心肌梗死面积与心功能的关系。材料和方法：初发急性穿壁心肌梗死患者，再通组１５例，平均年龄５７．７岁，未通组１９例，平均年龄６１．７，在发病早期和发病３周行ＳＰＥＣＴ显像，并于发病３周行核素左心室造影测量心肌缺血范围和ＬＶＥＦ。结果：再通组第２次心肌显像心肌缺损范围显著小于第１次显像，未通组两次心肌显像，心肌缺损范围无显著差别，两组病例第２次心肌显像，再通组心肌缺损范围显著小于未通组，而ＬＶＥＦ显著高于未通组第２次心肌显像，心肌缺损范围与ＬＶＥＦ呈负相关性。结论：早期血管再通可缩小心肌梗死面积，心肌梗死面积与左室射血分数有负相关性。
Objective: To quantitatively analyze the relationship between acute myocardial infarction area and cardiac function. Materials and Methods: Acute primary myocardial infarction patients, recanalization group of 15 patients, mean age 57.7 years, 19 cases failed group, mean age 61.7, in the early onset and onset of 3 weeks SPECT imaging, And 3 weeks after the onset of radionuclide left ventricular angiography myocardial ischemia range and LVEF. Results: The second myocardial imaging in myocardial reperfusion injury group was significantly less than the first imaging, non-through myocardial imaging twice, no significant difference in the scope of myocardial defect, the two cases of the second myocardial imaging, and then pass The range of myocardial defect was significantly less than that of the failed group, while LVEF was significantly higher than that of the second myocardial imaging of the failed group. The range of myocardial defect was negatively correlated with LVEF. Conclusion: Early revascularization can reduce myocardial infarct size, myocardial infarction area and left ventricular ejection fraction negative correlation.