EchocardiographyEchocardiography, TransesophagealEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, StressStrokeEchocardiography, Doppler, ColorContrast MediaCoronary CirculationFluorocarbonsHeart Septal Defects, AtrialDobutamineVentricular Function, LeftDiatrizoate MeglumineEchocardiography, Doppler, PulsedMitral ValveHeart DiseasesHeart AtriaObserver VariationVentricular Dysfunction, LeftHeart VentriclesStroke VolumeMitral Valve InsufficiencySensitivity and SpecificityHeart NeoplasmsPredictive Value of TestsCardiac CatheterizationProspective StudiesHeart SeptumBlood Flow VelocitySulfur HexafluorideHeart Valve DiseasesMyocardial InfarctionMyocardial ContractionDipyridamoleFeasibility StudiesDiatrizoateAortic ValveHeart Valve ProsthesisElectrocardiographyAlbuminsAtrial AppendageHemodynamicsMicrobubblesSystoleHeart Defects, CongenitalForamen Ovale, PatentReproducibility of ResultsAtrial Function, LeftCoronary AngiographyEmbolismMyxomaMyocardial ReperfusionCardiotonic AgentsThrombosisCoronary DiseaseAortic Valve InsufficiencyExercise TestMicrospheresHeart AneurysmDiastoleMyocardial IschemiaEsophagusDogsMyocardial StunningMitral Valve ProlapseCardiac Surgical ProceduresPulmonary VeinsTreatment OutcomeEmbolism, ParadoxicalCardiomyopathy, HypertrophicFollow-Up StudiesHeart Valve Prosthesis ImplantationAortic DiseasesHeartThoraxIntraoperative CareAtrial FibrillationAortic Valve StenosisMitral Valve StenosisCoronary VesselsCardiomyopathiesImage EnhancementTricuspid ValveTime FactorsMyocardiumEndocarditisElectric CountershockMonitoring, IntraoperativeTricuspid Valve InsufficiencySeptal Occluder DeviceMicrocirculationHeart Septal Defects, VentricularVentricular RemodelingTomography, Emission-Computed, Single-PhotonVentricular Dysfunction, RightPericardial EffusionSeverity of Illness IndexEndocarditis, BacterialChordae Tendineae