At baseline , myocardial perfusion differed between the MI core ( median , @ % ; interquartile range -LSB- IQR -RSB- , @ % -@ % ) , border zone ( median , @ % ; IQR , @ % -@ % ) , and remote myocardium ( median , @ % ; IQR , @ % -@ % ) ( P < @ for all ) , with equal distribution among treatment groups .