EchocardiographyMyocardial Perfusion ImagingCoronary CirculationContrast MediaTomography, Emission-Computed, Single-PhotonFluorocarbonsTechnetium Tc 99m SestamibiEchocardiography, StressEchocardiography, DopplerEchocardiography, TransesophagealEchocardiography, Three-DimensionalDiatrizoate MegluminePerfusionDipyridamoleDobutamineVentricular Function, LeftEchocardiography, Doppler, ColorMyocardial ReperfusionExercise TestHeartThallium RadioisotopesMyocardial IschemiaDiatrizoateCoronary AngiographyMyocardial InfarctionSensitivity and SpecificityRadiopharmaceuticalsOrganotechnetium CompoundsVentricular Dysfunction, LeftSulfur HexafluorideCoronary DiseaseAlbuminsObserver VariationPredictive Value of TestsMicrospheresMicrobubblesCoronary Artery DiseaseCardiac-Gated Single-Photon Emission Computer-Assisted TomographyGated Blood-Pool ImagingReproducibility of ResultsHeart VentriclesDogsStroke VolumeAdenosineImage EnhancementPerfusion ImagingElectrocardiographyMyocardial ContractionCoronary VesselsMicrocirculationHeart DiseasesMyocardiumFeasibility StudiesBlood Flow VelocityMyocardial StunningVasodilator AgentsCoronary StenosisHeart Septal Defects, AtrialHemodynamicsRubidium RadioisotopesCardiac CatheterizationImage Processing, Computer-AssistedProspective StudiesThalliumFractional Flow Reserve, MyocardialOrganophosphorus CompoundsCollateral CirculationImage Interpretation, Computer-AssistedHeart SeptumCardiotonic AgentsEchocardiography, Doppler, PulsedNitrogen RadioisotopesTissue SurvivalSonicationPapaverineSystoleCardiomyopathy, HypertrophicTomography, Emission-ComputedTime FactorsAngioplasty, Balloon, CoronaryChest PainArtifactsVentriculography, First-PassCardiomyopathiesBlood VolumeROC CurveMagnetic Resonance ImagingHyperemiaSeverity of Illness IndexPrognosisHeart AtriaHeart NeoplasmsRestHepatopulmonary SyndromeHeart Defects, CongenitalMitral ValveInjections, IntravenousFollow-Up StudiesVentricular RemodelingPositron-Emission Tomography