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, LeftMonitoring, IntraoperativePredictive Value of TestsThrombosisAortic Valve InsufficiencySensitivity and SpecificityMitral Valve ProlapseCardiac Surgical ProceduresProspective StudiesHeart Valve Prosthesis ImplantationFeasibility StudiesHeart Defects, CongenitalChordae TendineaeForamen Ovale, PatentHeart SeptumBlood Flow VelocityElectrocardiographyDiastoleEndocarditisHemodynamicsHeart AneurysmAtrial FibrillationMitral Valve StenosisAorta, ThoracicMyxomaIntraoperative PeriodMyocardial ContractionPulmonary VeinsSystoleTricuspid ValveEndocarditis, BacterialAortic Valve StenosisContrast MediaHeart Septal Defects, VentricularSeptal Occluder DeviceTricuspid Valve InsufficiencyExercise TestCoronary CirculationReproducibility of ResultsEmbolism, ParadoxicalCardiotonic AgentsElectric CountershockFetal HeartDipyridamoleCoronary AngiographyFollow-Up StudiesTreatment OutcomeHeartHeart RuptureAortic AneurysmEvaluation Studies as TopicCoronary DiseaseCardiac VolumeThoraxUltrasonography, InterventionalIntracranial EmbolismPericardial EffusionVentricular Function, RightThromboembolismMyocardial IschemiaEchocardiography, Four-DimensionalCardiomyopathiesHypertrophy, Left VentricularPulmonary ArteryThermodilutionAtrial SeptumMyocardial InfarctionCardiac TamponadeHeart ValvesTime FactorsHeart FailureCor Triatriatum