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 CareStroke VolumeObserver VariationAtrial Function, LeftMonitoring, IntraoperativeThrombosisAortic Valve InsufficiencyPredictive Value of TestsSensitivity and SpecificityMitral Valve ProlapseCardiac Surgical ProceduresProspective StudiesHeart Valve Prosthesis ImplantationFeasibility StudiesHeart Defects, CongenitalChordae TendineaeForamen Ovale, PatentHeart SeptumBlood Flow VelocityElectrocardiographyDiastoleEndocarditisHemodynamicsHeart AneurysmMitral Valve StenosisAorta, ThoracicAtrial FibrillationMyxomaIntraoperative PeriodMyocardial ContractionPulmonary VeinsSystoleTricuspid ValveEndocarditis, BacterialAortic Valve StenosisHeart Septal Defects, VentricularContrast MediaSeptal Occluder DeviceTricuspid Valve InsufficiencyExercise TestCoronary CirculationEmbolism, ParadoxicalCardiotonic AgentsReproducibility of ResultsElectric CountershockFetal HeartDipyridamoleCoronary AngiographyFollow-Up StudiesHeart RuptureHeartAortic AneurysmCoronary DiseaseCardiac VolumeThoraxUltrasonography, InterventionalTreatment OutcomeIntracranial EmbolismPericardial EffusionVentricular Function, RightEvaluation Studies as TopicThromboembolismMyocardial IschemiaEchocardiography, Four-DimensionalCardiomyopathiesHypertrophy, Left VentricularPulmonary ArteryThermodilutionAtrial SeptumCardiac TamponadeMyocardial InfarctionHeart ValvesCor TriatriatumHeart FailureEmbolism, Air