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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.