Echocardiography, TransesophagealEchocardiographyEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, Doppler, ColorEchocardiography, StressMitral ValveHeart Septal Defects, AtrialHeart AtriaEchocardiography, Doppler, PulsedMitral Valve InsufficiencyHeart DiseasesDobutamineAtrial AppendageHeart Valve DiseasesEsophagusHeart Valve ProsthesisUltrasonography, InterventionalVentricular Function, LeftSensitivity and SpecificityEmbolismCardiac CatheterizationHeart NeoplasmsObserver VariationAortic ValveUltrasonographyPredictive Value of TestsVentricular Dysfunction, LeftHeart VentriclesIntraoperative CareProspective StudiesUltrasonicsAortic DiseasesStroke VolumeThrombosisAtrial Function, LeftMonitoring, IntraoperativeBlood Flow VelocityFeasibility StudiesAortic Valve InsufficiencyContrast MediaMitral Valve ProlapseCardiac Surgical ProceduresReproducibility of ResultsHeart Defects, CongenitalHeart Valve Prosthesis ImplantationUltrasonic TherapyChordae TendineaeHeart SeptumForamen Ovale, PatentElectrocardiographyUltrasonography, PrenatalHemodynamicsTransducersDiastoleMicrobubblesIntraoperative PeriodEndocarditisAorta, ThoracicHeart AneurysmMitral Valve StenosisAtrial FibrillationPulmonary VeinsMyocardial ContractionSystoleMyxomaHigh-Intensity Focused Ultrasound AblationFetal HeartTricuspid ValveAortic Valve StenosisCoronary CirculationHeart Septal Defects, VentricularEndocarditis, BacterialFollow-Up StudiesCoronary AngiographyTricuspid Valve InsufficiencyExercise TestSeptal Occluder DeviceTreatment OutcomeEmbolism, ParadoxicalCardiotonic AgentsElectric CountershockCoronary DiseaseEchocardiography, Four-DimensionalDipyridamoleThoraxHeartCardiac VolumeAortic AneurysmEvaluation Studies as TopicTime FactorsIntracranial EmbolismHeart RupturePericardial EffusionTomography, X-Ray ComputedRetrospective StudiesVentricular Function, RightThromboembolismMyocardial IschemiaFluorocarbons