PSME3 and myocardial infarction: Net influx rate of 68Ga-NODAGA-exendin-4 was higher in the infarct region of the LV than remote myocardium at 3 days (Ki 0.0043 ± 0.00048 vs 0.0014 ± 0.00045, P = 0.0036), 1 week (Ki 0.0024 ± 0.00041 vs 0.0014 ± 0.0026, P < 0.001), and 12 weeks (Ki 0.0017 ± 0.00042 vs 0.0011 ± 0.00033, P = 0.037) after MI (Figure 3C).