Coronary VesselsCoronary AngiographyHeartCoronary Artery DiseaseCoronary CirculationAngioplasty, Balloon, CoronaryCoronary StenosisCoronary DiseasePericardiumCoronary Artery BypassHeart RateBlood VesselsMyocardial InfarctionMyocardiumCoronary RestenosisDogsCoronary Vessel AnomaliesCoronary VasospasmMyocardial IschemiaCoronary AneurysmHeart FailureTime FactorsEndothelium, VascularRisk FactorsCoronary ThrombosisVasodilator AgentsNitroglycerinStentsTreatment OutcomeVasodilationVascular ResistanceProspective StudiesHemodynamicsHeart DiseasesVasa VasorumFollow-Up StudiesCoronary OcclusionPredictive Value of TestsUltrasonography, InterventionalHeart TransplantationElectrocardiographyAdenosinePercutaneous Coronary InterventionCalcinosisBlood Flow VelocityHeart Defects, CongenitalSwineModels, CardiovascularTomography, X-Ray ComputedLymphatic VesselsVasoconstrictionArteriesMyocardial ContractionPerfusionMagnetic Resonance AngiographyCoronary Care UnitsAcetylcholineNeovascularization, PhysiologicExercise TestRetinal VesselsSensitivity and SpecificityNitric OxideQuailCoturnixBiological MarkersSeverity of Illness IndexRetrospective StudiesMuscle, Smooth, VascularReproducibility of ResultsBlood PressureFetal HeartRegional Blood FlowContrast MediaHeart ValvesHeart AtriaFeasibility StudiesTunica MediaVeinsCardiac CatheterizationTunica IntimaEchocardiographyRisk AssessmentSirolimusHeart Arrest, InducedVentricular Function, LeftAngina, UnstableAngina PectorisCoronary Artery Bypass, Off-PumpMyocardial RevascularizationCollateral CirculationImmunohistochemistryNG-Nitroarginine Methyl EsterParacrine CommunicationHeart Function TestsPlatelet Aggregation InhibitorsMicrocirculationImage Processing, Computer-AssistedChick EmbryoHeart BlockHeart Ventricles