Coronary CirculationCoronary VesselsPerfusionCoronary AngiographyCoronary Artery DiseaseCoronary StenosisCardiopulmonary ResuscitationAngioplasty, Balloon, CoronaryCoronary DiseaseDogsHeartCoronary Artery BypassPerfusion ImagingHeart ArrestHemodynamicsMyocardial IschemiaHeart Arrest, InducedMyocardial ContractionMyocardial ReperfusionMyocardiumBlood PressureMyocardial Perfusion ImagingHeart MassageSwineMyocardial InfarctionVascular ResistancePressureCoronary VasospasmCounterpulsationTime FactorsBlood Circulation TimeVentricular FibrillationCoronary AneurysmAdenosineBlood Flow VelocityVasodilator AgentsCoronary ThrombosisMyocardial Reperfusion InjuryExtracorporeal CirculationVentricular Function, LeftVasodilationMicrocirculationElectrocardiographyCoronary RestenosisRegional Blood FlowHeart VentriclesCoronary OcclusionTomography, Emission-Computed, Single-PhotonModels, CardiovascularTreatment OutcomeOxygen ConsumptionBlood SubstitutesCardiopulmonary BypassPercutaneous Coronary InterventionCardiac VolumeVentricular FunctionDiastoleNitric OxideEndothelium, VascularRisk FactorsCoronary Care UnitsEpinephrineVasoconstrictor AgentsVentricular PressureDisease Models, AnimalAortaVasoconstrictionProspective StudiesRabbitsRats, WistarElectric CountershockHeart RateStentsFollow-Up StudiesSystolePredictive Value of TestsBradykininCardiac OutputTomography, X-Ray ComputedChemotherapy, Cancer, Regional PerfusionOxygenRats, Sprague-DawleyGuinea PigsTechnetium Tc 99m SestamibiContrast MediaDipyridamoleMyocardial RevascularizationUltrasonography, InterventionalCalcinosisCollateral CirculationExercise TestAnoxiaNG-Nitroarginine Methyl EsterCoronary Artery Bypass, Off-PumpAngina, UnstableSensitivity and SpecificityThallium RadioisotopesCardiac CatheterizationNitric Oxide SynthaseOrganotechnetium Compounds