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观察了37例心梗患者和28例正常对照组的~(99m)TC-MIBI首次通过法左室造影(FPRNA)检测左室射血分数(LVEF)及心肌断层显像加作短轴面左室腔-心肌比值(C/W),旨在了解一次注药进行两种分析对于缺血性心肌病变的心肌灌注和心功能变化的临床实用价值,并结合超声心动图(UCG)的LVEF和左室内径对比观察.结果示:(1)心梗组的FPRNA的LVEF,C/W均显著低于对照组LVEF,C/W(p<0.05～0.01).(2)心梗组中FPRNA的LVEF与UCG的IVEF相关显著(r=0.62,P<0.01),与左室内径呈负相关(r=-0.63,P<0.01).与梗塞节段数是显著负相关(r=-0.79,P<0.001).(3)心梗组中C/W与FPRNA的LVEF呈显著正相关(r=0.69,P<0.001);与左室内径呈显著负相关(r=-0.51,P<0.05);与患者梗塞节段的数量呈显著负相关(r=-0.76,P<0.001).(4)C/W对于心功能不全的检出敏感性92%,特异性50%,准确性75%.
(99m) TC-MIBI in 37 patients with myocardial infarction and 28 normal controls were measured by left ventricular ejection fraction (LVEF) and myocardial perfusion imaging (LVEF) (C / W) was designed to understand the clinical utility of two analyzes of one injection for myocardial perfusion and changes in cardiac function in ischemic cardiomyopathy, combined with LVEF of echocardiography (UCG) and The results showed that: (1) The LVEF and C / W of FPRNA in myocardial infarction group were significantly lower than those in control group (P <0.05-0.01). (2) FPRNA (R = -0.63, P <0.01), but negatively correlated with the number of infarct segments (r = -0.79, P < P <0.001). (3) The LVEF of C / W and FPRNA in myocardial infarction group was significantly correlated (r = -0.69, P <0.001) ) Was negatively correlated with the number of infarct segments (r = -0.76, P <0.001). (4) The detection sensitivity of C / W for cardiac insufficiency was 92%, specificity was 50%, and accuracy was 75 %.