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９９Ｔｃｍ甲氧基异丁基异腈（ＭＩＢＩ）能检测心肌血流灌注情况［１］，而局部心肌摄取及滞留９９ＴｃｍＭＩＢＩ与心肌细胞膜的完整性和心肌活力密切相关［２］。小儿病毒性心肌炎（ＶＭ）与心肌病除行创伤性心内膜心肌活检外，目前尚缺乏特异性诊断方法。我们应用９９
99Tcm-methoxy isobutyl isonitrile (MIBI) can detect myocardial perfusion [1], while the local myocardial uptake and 99TcmMIBI is closely related to myocardial cell membrane integrity and myocardial viability [2]. Pediatric viral myocarditis (VM) and cardiomyopathy in addition to traumatic endocardial myocardial biopsy, the current lack of specific diagnostic methods. We apply 99