title: Reproducibility of the estimate of coronary perfusion changes. Possibility of evaluating coronary reserve capability during pacing induced tachycardia by  86 Rb precordial counting.
mesh_terms: D003331:Coronary Vessels / Q000502:physiology*; D006801:Humans; D008433:Mathematics; D010138:Pacemaker, Artificial; D011868:Radioisotopes; D012413:Rubidium; D013610:Tachycardia
chemical_list: D011868:Radioisotopes; D012413:Rubidium