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为探讨急诊９９ｍＴｃ甲氧基异丁基异腈（ＭＩＢＩ）心肌断层显像在不典型急性心肌梗塞（ＡＭＩ）诊断及溶栓治疗中的价值，对５例不典型ＡＭＩ患者静脉注射９９ｍＴｃＭＩＢＩ后２小时进行心肌断层显像。结果，５例患者均明确了诊断，其中２例在６小时内进行了溶栓治疗，通过第二次心肌显像，支持临床冠状动脉再通判断。因此，急诊９９ｍＴｃＭＩＢＩ心肌显像对不典型ＡＭＩ的诊断具有特殊的价值；同时，对判断溶栓疗效，估价预后也具有一定的意义。
To investigate the value of 99mTc-methoxyisobutylisonitrile (MIBI) myocardial perfusion imaging in the diagnosis and thrombolytic therapy of atypical acute myocardial infarction (AMI), five patients with atypical AMI were intravenously injected with 99mTcMIBI Hour myocardial imaging. Results: All 5 patients had a definite diagnosis. Two of them were treated with thrombolytic therapy within 6 hours. The second myocardial imaging was performed to support clinical judgment of coronary recanalization. Therefore, the emergency 99mTcMIBI myocardial imaging diagnosis of atypical AMI has a special value; the same time, to determine the efficacy of thrombolytic evaluation of prognosis is also of some significance.