Echocardiography, TransesophagealEchocardiographyEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, Doppler, ColorEchocardiography, StressMitral ValveHeart Septal Defects, AtrialHeart AtriaEchocardiography, Doppler, PulsedMitral Valve InsufficiencyHeart DiseasesDobutamineAtrial AppendageHeart Valve DiseasesHeart Valve ProsthesisEsophagusVentricular Function, LeftHeart NeoplasmsEmbolismCardiac CatheterizationAortic ValveVentricular Dysfunction, LeftHeart VentriclesAortic DiseasesIntraoperative CareObserver VariationStroke VolumeAtrial Function, LeftPredictive Value of TestsSensitivity and SpecificityMonitoring, IntraoperativeThrombosisAortic Valve InsufficiencyMitral Valve ProlapseCardiac Surgical ProceduresProspective StudiesHeart Valve Prosthesis ImplantationFeasibility StudiesHeart Defects, CongenitalChordae TendineaeForamen Ovale, PatentHeart SeptumBlood Flow VelocityElectrocardiographyDiastoleEndocarditisHemodynamicsHeart AneurysmAtrial FibrillationMitral Valve StenosisAorta, ThoracicIntraoperative PeriodMyxomaMyocardial ContractionPulmonary VeinsSystoleTricuspid ValveEndocarditis, BacterialAortic Valve StenosisReproducibility of ResultsContrast MediaHeart Septal Defects, VentricularSeptal Occluder DeviceExercise TestTricuspid Valve InsufficiencyCoronary CirculationEmbolism, ParadoxicalCardiotonic AgentsElectric CountershockTreatment OutcomeFollow-Up StudiesFetal HeartDipyridamoleCoronary AngiographyHeartHeart RuptureAortic AneurysmCoronary DiseaseThoraxCardiac VolumeUltrasonography, InterventionalIntracranial EmbolismEvaluation Studies as TopicPericardial EffusionVentricular Function, RightThromboembolismMyocardial IschemiaEchocardiography, Four-DimensionalCardiomyopathiesHypertrophy, Left VentricularTime FactorsPulmonary ArteryThermodilutionMyocardial InfarctionAtrial SeptumCardiac TamponadeHeart ValvesHeart FailureCor Triatriatum