Objective To assess the effects of simultaneous antegrade/retrograde cardioplegia(SARC) on myocardial perfusion and energy metabolism in ischemic myocardium using magnetic resonance imaging(MRI).

• 目的应用磁共振成像(MRI)技术研究顺行性/逆行同时灌注(SARC)对缺血心肌的灌注效果和对能量代谢的影响。