MyocardiumHeartMyocardial StunningMyocardial ContractionMyocardial IschemiaHeart VentriclesMyocardial InfarctionCoronary CirculationDogsMyocardial Reperfusion InjuryMyocytes, CardiacMyocardial ReperfusionCardiotonic AgentsVentricular RemodelingCardiomyopathiesPericardiumVentricular Function, LeftTissue SurvivalVentricular FunctionHemodynamicsCoronary VesselsEchocardiographyCardiomegalyHeart 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