Echocardiography, TransesophagealEchocardiographyEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, Doppler, ColorEchocardiography, StressMitral ValveHeart Septal Defects, AtrialHeart AtriaEchocardiography, Doppler, PulsedMitral Valve InsufficiencyHeart DiseasesDobutamineAtrial AppendageHeart Valve DiseasesHeart Valve ProsthesisEsophagusVentricular Function, LeftCardiac CatheterizationEmbolismHeart NeoplasmsAortic ValveVentricular Dysfunction, LeftHeart VentriclesIntraoperative CareAortic DiseasesObserver VariationStroke VolumeSensitivity and SpecificityCardiac Surgical ProceduresAtrial Function, LeftMonitoring, IntraoperativePredictive Value of TestsThrombosisAortic Valve InsufficiencyMitral Valve ProlapseProspective StudiesFeasibility StudiesHeart Valve Prosthesis ImplantationHeart Defects, CongenitalChordae TendineaeHeart SeptumForamen Ovale, PatentElectrocardiographyBlood Flow VelocityAtrial FibrillationHemodynamicsEndocarditisDiastoleIntraoperative PeriodPulmonary VeinsHeart AneurysmAorta, ThoracicMitral Valve StenosisMyxomaReproducibility of ResultsMyocardial ContractionTricuspid ValveSystoleAortic Valve StenosisTreatment OutcomeContrast MediaEndocarditis, BacterialHeart Septal Defects, VentricularSeptal Occluder DeviceTricuspid Valve InsufficiencyExercise TestFollow-Up StudiesCoronary CirculationEmbolism, ParadoxicalCardiotonic AgentsElectric CountershockFetal HeartCoronary AngiographyDipyridamoleEvaluation Studies as TopicUltrasonography, InterventionalAortic AneurysmCoronary DiseaseHeartTime FactorsHeart RuptureThoraxIntracranial EmbolismCardiac VolumePericardial EffusionRetrospective StudiesVentricular Function, RightThromboembolismMyocardial IschemiaEchocardiography, Four-DimensionalPulmonary ArteryCardiomyopathiesMyocardial InfarctionHypertrophy, Left VentricularAtrial SeptumThermodilutionCardiac TamponadeHeart ValvesTomography, X-Ray Computed