Tomography, Emission-Computed, Single-PhotonEchocardiographyPhotonsOrganotechnetium CompoundsTomography, X-Ray ComputedTomography, Emission-ComputedTechnetium Tc 99m ExametazimeThallium RadioisotopesRadiopharmaceuticalsOximesEchocardiography, TransesophagealPositron-Emission TomographyEchocardiography, DopplerEchocardiography, Three-DimensionalIofetamineTechnetiumEchocardiography, StressIodine RadioisotopesComputersTechnetium Tc 99m SestamibiIodobenzenesCerebrovascular CirculationHeartThalliumTechnetium Tc 99m PyrophosphateXenon RadioisotopesEchocardiography, Doppler, ColorSensitivity and SpecificityBrainMagnetic Resonance ImagingDobutamineExercise TestTropanesAmphetaminesPredictive Value of TestsVentricular Dysfunction, LeftVentricular Function, LeftCardiac-Gated Single-Photon Emission Computer-Assisted TomographyMyocardial Perfusion ImagingImage Processing, Computer-AssistedDiagnostic ImagingElectrocardiographyTomographyStroke VolumeHeart VentriclesReproducibility of ResultsAcetazolamideMyocardial IschemiaEchocardiography, Doppler, PulsedOrganophosphorus CompoundsDipyridamoleCoronary CirculationMyocardial InfarctionMyocytes, CardiacTime FactorsPhantoms, ImagingComputer SimulationCoronary AngiographyOrganometallic CompoundsMultimodal ImagingCoronary DiseaseCinanserinFluorodeoxyglucose F18Tissue SurvivalContrast MediaProspective StudiesMyocardiumMyocardial ContractionDopamine Plasma Membrane Transport ProteinsHeart DiseasesIndium RadioisotopesImage EnhancementFollow-Up StudiesRegional Blood FlowCardiac OutputHemodynamicsFrontal LobeTomography, Optical CoherenceThalamic DiseasesFeasibility StudiesTreatment OutcomeImage Interpretation, Computer-AssistedCerebral RevascularizationRadioactive TracersTechnetium Tc 99m MedronateNortropanesRadioisotopesMyocardial StunningSpondylolysisCardiac CatheterizationSeverity of Illness IndexBlood Flow VelocityCardiac Surgical ProceduresGamma CamerasMitral ValveTechnetium Tc 99m Aggregated AlbuminImaging, Three-DimensionalCoronary Artery DiseasePrognosisSpectrometry, Gamma