MyocardiumHeartMyocytes, CardiacCardiomegalyMyocardial StunningMyocardial ContractionMyocardial IschemiaHeart VentriclesMyocardial InfarctionCoronary CirculationDogsMyocardial Reperfusion InjuryMyocardial ReperfusionCardiotonic AgentsVentricular RemodelingCardiomyopathiesPericardiumVentricular Function, LeftTissue SurvivalVentricular FunctionHemodynamicsCoronary VesselsEchocardiographyHeart AtriaCoronary DiseaseCardiomyopathy, DilatedIsolated Noncompaction of the Ventricular MyocardiumIschemic Preconditioning, MyocardialDobutamineTime FactorsVentricular Dysfunction, LeftMyocarditisSwineHeart FailureDisease Models, AnimalIodobenzenesPerfusionTomography, Emission-Computed, Single-PhotonHeart Conduction SystemRats, Sprague-DawleyTomography, Emission-ComputedRats, WistarMitochondria, HeartCreatine KinaseElectrocardiographyModels, CardiovascularCalciumOrganotechnetium CompoundsFibrosisThallium RadioisotopesRabbitsMagnetic Resonance Imaging, CineContrast MediaMyofibrilsFetal HeartCollateral CirculationHeart Function TestsArrhythmias, CardiacSarcolemmaRadiopharmaceuticalsSystoleHeart RateGadolinium DTPAThiadiazinesCardiac MyosinsTroponin IMyocardial RevascularizationTechnetium Tc 99m SestamibiStroke VolumeEndomyocardial FibrosisMyoblasts, CardiacDiastoleNitrogen RadioisotopesEdema, CardiacSwine, MiniatureNecrosisImmunohistochemistryVentricular PressureNeovascularization, PhysiologicCicatrixHeart Arrest, InducedConnexin 43Myoblasts, SkeletalThalliumAdrenergic beta-AgonistsMicrospheresRNA, MessengerStem Cell TransplantationHypertrophy, Left VentricularReceptors, Adrenergic, betaHeart DiseasesHeart ValvesSarcoplasmic ReticulumOxygen ConsumptionAction PotentialsMagnetic Resonance ImagingSarcomeresCells, CulturedVentricular DysfunctionPhosphocreatine