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为比较硝酸甘油酯(NTG)介入99mTc甲氧基异丁基异腈(MIBI)心肌断层显像与小剂量多巴酚丁胺负荷超声心动图(DSE)在判断急性心肌梗塞(AMI)后病人存活心肌中的一致性,对36例AMI病人分别进行了NTG介入99mTcMIBI心肌断层显像和小剂量(<10μg·kg-1·min-1)的DSE检查,所有检查均在病人入院后2~3周内完成。结果:在心肌静态显像示梗塞的109个节段中,NTG显像43个为存活节段,存活心肌检出率为39%;在基础状态下超声心动图示梗塞的94个节段中,DSE检查35个为存活节段,其存活心肌检出率为37%,两者间差异无显著性(χ2=0105,P>005)。在两法共同检出的92个梗塞节段中,均存活的节段为29个,均未存活的节段为49个,两法的一致性为848%(78/92,Κ=068)。因此,NTG介入99mTcMIBI心肌断层显像与DSE检查均为判断AMI后病人存活心肌的安全、可靠的方法,两法具有良好的一致性。
In order to compare the survival of patients with acute myocardial infarction (AMI) after nitroglycerin (NTG) interventional 99mTc-methoxyisobutylisonitrile (MIBI) myocardial perfusion imaging and low-dose dobutamine stress echocardiography Myocardial consistency, 36 patients with AMI were NTG intervention 99mTcMII myocardial imaging and low dose (<10μg · kg-1 · min-1) DSE examination, all the tests were in patients after admission 2 ~ 3 weeks to complete. Results: Of the 109 segments of myocardial infarction with static myocardial imaging, 43 were detected by NTG imaging and 39% by viable myocardium. In the 94 segments of infarction under echocardiography 35 survivors were detected by DSE, and the detection rate of viable myocardium was 37%. There was no significant difference between them (χ2 = 0105, P> 005). Among the 92 infarction segments detected by the two methods, 29 survived segments, 49 segments without any survival, the consistency of the two methods was 84.8% (78/92, Κ = 0 68). Therefore, NTG intervention 99mTcMII myocardial imaging and DSE examination are to determine the survival of patients with myocardial AMI after a safe and reliable method, the two methods have a good consistency.