Echocardiography, TransesophagealEchocardiographyEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, Doppler, ColorEchocardiography, StressMitral ValveHeart Septal Defects, AtrialHeart AtriaHeart DiseasesMitral Valve InsufficiencyEchocardiography, Doppler, PulsedDobutamineAtrial AppendageHeart Valve DiseasesEsophagusHeart Valve ProsthesisVentricular Function, LeftSensitivity and SpecificityCardiac CatheterizationEmbolismHeart NeoplasmsAortic ValveVentricular Dysfunction, LeftHeart VentriclesObserver VariationAortic DiseasesIntraoperative CarePredictive Value of TestsStroke VolumeAtrial Function, LeftMonitoring, IntraoperativeThrombosisFeasibility StudiesAortic Valve InsufficiencyMitral Valve ProlapseReproducibility of ResultsCardiac Surgical ProceduresProspective StudiesBlood Flow VelocityHeart Valve Prosthesis ImplantationHeart Defects, CongenitalElectrocardiographyChordae TendineaeForamen Ovale, PatentContrast MediaHeart SeptumHemodynamicsDiastoleEndocarditisMyocardial ContractionHeart AneurysmAorta, ThoracicAtrial FibrillationMitral Valve StenosisSystoleIntraoperative PeriodMyxomaPulmonary VeinsTricuspid ValveCoronary CirculationEndocarditis, BacterialAortic Valve StenosisExercise TestHeart Septal Defects, VentricularSeptal Occluder DeviceCardiotonic AgentsTricuspid Valve InsufficiencyTreatment OutcomeEmbolism, ParadoxicalTime FactorsHeartEvaluation Studies as TopicElectric CountershockFollow-Up StudiesDipyridamoleFetal HeartCoronary AngiographyUltrasonography, InterventionalCoronary DiseaseHeart RuptureAortic AneurysmThoraxCardiac VolumeTomography, X-Ray ComputedMyocardial IschemiaIntracranial EmbolismPericardial EffusionVentricular Function, RightCardiomyopathiesImage Processing, Computer-AssistedThromboembolismMagnetic Resonance ImagingMyocardial InfarctionEchocardiography, Four-DimensionalPulmonary ArteryHeart FailureHypertrophy, Left VentricularThermodilutionAtrial Septum