MedicineCardiologyPharmacokineticsClinical CardiologyPathophysiologyArea Under The CurveCardiac PhysiologyCardiovascular PathophysiologyHemodynamicsMyocardial Blood Flow QuantificationLognormal RegressionMyocardial Perfusion TracersRadioactive TracersRandom Walk HypothesisTime-activity CurvesTracer QuantificationTracer Uptake Kinetics