Echocardiography, TransesophagealEchocardiographyEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, Doppler, ColorEchocardiography, StressMitral ValveEchocardiography, Doppler, PulsedHeart Septal Defects, AtrialHeart AtriaMitral Valve InsufficiencyHeart DiseasesVentricular Function, LeftDobutamineHeart VentriclesAtrial AppendageHeart Valve DiseasesHeart Valve ProsthesisEsophagusObserver VariationStroke VolumeHeart NeoplasmsEmbolismCardiac CatheterizationAortic ValveVentricular Dysfunction, LeftDiastoleAortic DiseasesPredictive Value of TestsIntraoperative CareSensitivity and SpecificityProspective StudiesAtrial Function, LeftSystoleMonitoring, IntraoperativeThrombosisAortic Valve InsufficiencyMitral Valve ProlapseElectrocardiographyCardiac Surgical ProceduresBlood Flow VelocityMyocardial ContractionHeart Valve Prosthesis ImplantationFeasibility StudiesHeart Defects, CongenitalChordae TendineaeForamen Ovale, PatentHeart SeptumReproducibility of ResultsEndocarditisHemodynamicsHeart AneurysmMitral Valve StenosisAorta, ThoracicVentricular Function, RightAtrial FibrillationMyxomaIntraoperative PeriodHeartPulmonary VeinsTricuspid ValveEndocarditis, BacterialAortic Valve StenosisHeart Septal Defects, VentricularContrast MediaSeptal Occluder DeviceExercise TestTricuspid Valve InsufficiencyCoronary CirculationTime FactorsEmbolism, ParadoxicalCardiotonic AgentsCoronary DiseaseElectric CountershockFetal HeartFollow-Up StudiesDipyridamoleCoronary AngiographyTreatment OutcomeHeart RuptureThoraxAortic AneurysmMyocardial InfarctionCardiac VolumeUltrasonography, InterventionalIntracranial EmbolismPericardial EffusionEvaluation Studies as TopicImage Processing, Computer-AssistedThromboembolismMyocardial IschemiaEchocardiography, Four-DimensionalCardiomyopathiesHypertrophy, Left VentricularPulmonary ArteryTomography, X-Ray ComputedMagnetic Resonance Imaging, CineThermodilutionAtrial SeptumPhonocardiography