Figure 3

Comparison of perfusion up-slopes at stress and recovery, normalized for rest up-slope, on a per-patient basis. Four subjects in the aminophylline group and 3 subjects in the no-aminophylline group had greater perfusion at recovery than at stress. ^* P < 0.001; ^† P = 0.08; ^**P = 0.02; ^‡ P = 0.01; ^ʃ P = 0.38