Regional Myocardial Blood Flow in Man During Dipyridamole Coronary Vasodilation

Regional myocardial blood flow before and after intravenous dipyridamole (0.56 mg/kg) was measured during cardiac catheterization in 11 patients using the 133 Xe washout technique. Significant increases in heart rate (75 ± 4 vs 87 ± 6, p