At baseline , myocardial perfusion differed between the MI core ( median , 6.0 % ; interquartile range [ IQR ] , 4.1 % -8.0 % ) , border zone ( median , 8.4 % ; IQR , 6.4 % -10.2 % ) , and remote myocardium ( median , 12.2 % ; IQR , 10.5 % -15.9 % ) ( P < .001 for all ) , with equal distribution among treatment groups .