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探讨含服硝酸甘油(NTG)介入~(99m)Tc—甲氧基异丁基异晴(MIBI)心肌断层显像在评价心梗患者心肌存活中的价值。方法:37例心梗患者中病程≤4周的急性心梗(AMI)者18例,病程>4周的陈旧心梗(OMI)者19例。所有患者先行静息心肌断层显像,24～48小时后再行NTG介入心肌断层显像。结果:18例AMI患者静态心肌显像112个节段异常,NTG介入后有32个节段改善或明显改善,总改善率28.6％,无变化和恶化率71.4％;19例OMI患者静态心肌显像87个节段异常,NTG介入后有45个节段改善或明显改善,总改善率51.7％,无变化和恶化率48.3％。结论:AMI组和OMI组NTG介入后心肌灌注总改善率有明显差异(P<0.05)。NTG介入心肌显像对陈旧心梗患者心肌存活的判定具有一定的价值,但对AMI者应注意结果受临床用药的影响。
To investigate the value of NTG intervention 99m Tc-methoxyisobutyl isomycinol (MIBI) myocardial perfusion imaging in the evaluation of myocardial survival in patients with myocardial infarction. Methods: Thirty - seven patients with AMI were enrolled in this study. Eighteen AMI patients were older than 4 weeks, and 19 patients with AMI> 4 weeks old. Resting myocardial perfusion imaging was performed in all patients. NTG interventional myocardial imaging was performed 24 to 48 hours later. Results: In 18 AMI patients, 112 segments were abnormal in static myocardial imaging. After NTG intervention, 32 segments improved or significantly improved, with a total improvement rate of 28.6% and no change and deterioration rate of 71.4% Like 87 segments abnormalities, 45 segments improved or significantly improved after NTG intervention, with a total improvement rate of 51.7% and no change and deterioration rate of 48.3%. Conclusion: There was a significant difference in the total myocardial perfusion improvement rate between AMI group and OMI group after NTG intervention (P <0.05). NTG interventional myocardial imaging myocardial infarction patients with myocardial infarction has a certain value, but should pay attention to the results of AMI by clinical medication.