Kinetic analysis. Radioactivity uptake of the active and partially inactivated 99mTc-Duramycin, in terms of %ID/g, in ischemic and normal myocardium at 3, 10, 20, 60, and 180 min after intravenous injection. Values are mean ± SD. N = 4 for active and partially inactivated 99mTc-Duramycin at each of the time points. Solid lines are model fits. * Uptake of 99mTc-Duramycin in area-at-risk is significantly different from that for the partially inactivated 99mTc-Duramycin at the same time point (P < 0.05). # Uptake of partially inactivated 99mTc-Duramycin in area-at-risk is significantly different from its uptake in viable tissue at the same time (P < 0.05)