Fig. 3
a MPRI of remote myocardial segments was significantly higher without caffeine compared to measurements after caffeine intake. b In contrast, caffeine had no significant effect on MPRI of ischemic segments. c Subsequently, the ratio of remote and ischemic segment MPRI was increased without caffeine, indicative of a better contrast ratio between ischemic and remote myocardial perfusion, facilitating the visual assessment of ischemia