Echocardiography, TransesophagealEchocardiographyEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, Doppler, ColorEchocardiography, StressMitral ValveHeart Septal Defects, AtrialHeart AtriaEchocardiography, Doppler, PulsedMitral Valve InsufficiencyHeart DiseasesDobutamineAtrial AppendageHeart Valve DiseasesEsophagusHeart Valve ProsthesisVentricular Function, LeftHeart NeoplasmsEmbolismCardiac CatheterizationAortic ValveVentricular Dysfunction, LeftHeart VentriclesObserver VariationAortic DiseasesIntraoperative CareSensitivity and SpecificityStroke VolumePredictive Value of TestsAtrial Function, LeftMonitoring, IntraoperativeThrombosisAortic Valve InsufficiencyProspective StudiesMitral Valve ProlapseCardiac Surgical ProceduresFeasibility StudiesHeart Valve Prosthesis ImplantationHeart Defects, CongenitalChordae TendineaeBlood Flow VelocityElectrocardiographyForamen Ovale, PatentHeart SeptumEndocarditisDiastoleHemodynamicsHeart AneurysmAorta, ThoracicMyxomaAtrial FibrillationMitral Valve StenosisIntraoperative PeriodMyocardial ContractionPulmonary VeinsSystoleReproducibility of ResultsContrast MediaTricuspid ValveEndocarditis, BacterialAortic Valve StenosisHeart Septal Defects, VentricularSeptal Occluder DeviceExercise TestTricuspid Valve InsufficiencyCoronary CirculationEmbolism, ParadoxicalFollow-Up StudiesCardiotonic AgentsFetal HeartElectric CountershockTreatment OutcomeDipyridamoleCoronary AngiographyHeartHeart RuptureCoronary DiseaseAortic AneurysmThoraxUltrasonography, InterventionalCardiac VolumeEvaluation Studies as TopicPericardial EffusionIntracranial EmbolismVentricular Function, RightPhysical ExaminationTime FactorsTomography, X-Ray ComputedThromboembolismEchocardiography, Four-DimensionalMyocardial IschemiaCardiomyopathiesHypertrophy, Left VentricularPulmonary ArteryAtrial SeptumMyocardial InfarctionRetrospective StudiesThermodilutionCardiac Tamponade