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 VentriclesAortic DiseasesIntraoperative CareObserver VariationStroke VolumeAtrial Function, LeftMonitoring, IntraoperativeThrombosisSensitivity and SpecificityPredictive Value of TestsAortic Valve InsufficiencyMitral Valve ProlapseCardiac Surgical ProceduresProspective StudiesHeart Valve Prosthesis ImplantationFeasibility StudiesHeart Defects, CongenitalChordae TendineaeForamen Ovale, PatentHeart SeptumBlood Flow VelocityElectrocardiographyDiastoleHemodynamicsEndocarditisHeart AneurysmAorta, ThoracicAtrial FibrillationMitral Valve StenosisMyocardial ContractionMyxomaIntraoperative PeriodPulmonary VeinsSystoleTricuspid ValveEndocarditis, BacterialAortic Valve StenosisContrast MediaHeart Septal Defects, VentricularSeptal Occluder DeviceTricuspid Valve InsufficiencyExercise TestCoronary CirculationReproducibility of ResultsEmbolism, ParadoxicalCardiotonic AgentsElectric CountershockFetal HeartDipyridamoleCoronary AngiographyHeartFollow-Up StudiesHeart RuptureAortic AneurysmCoronary DiseaseTreatment OutcomeCardiac VolumeThoraxUltrasonography, InterventionalIntracranial EmbolismPericardial EffusionVentricular Function, RightEvaluation Studies as TopicThromboembolismMyocardial IschemiaEchocardiography, Four-DimensionalCardiomyopathiesHypertrophy, Left VentricularTime FactorsPulmonary ArteryThermodilutionAtrial SeptumMyocardial InfarctionCardiac TamponadeHeart ValvesHeart FailureCor Triatriatum