心脏血流供应不足会导致心肌缺血,如果心肌缺血时间延长会导致心肌细胞坏死和心肌损伤。因此应在心肌坏死之前鉴别出心肌缺血,以便于进行急性受损的心肌灌注治疗。当前心脏缺血的诊断多依赖于心电图(ECG)的ST段和T波改变,这是心肌缺血最简便、最迅速、最廉价的检查方法,但ECG诊 Inadequate supply of cardiac flow leads to myocardial ischemia, which can lead to myocardial necrosis and myocardial damage if myocardial ischemia is prolonged. Therefore, myocardial ischemia should be identified prior to myocardial necrosis in order to facilitate acutely damaged myocardial perfusion therapy. The current diagnosis of cardiac ischemia depends more on ECG ST segment and T wave changes, which is the simplest, most rapid and cheapest method of myocardial ischemia, but ECG diagnosis