EchocardiographyEchocardiography, TransesophagealEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, StressEchocardiography, Doppler, ColorEchocardiography, Doppler, PulsedDobutamineVentricular Function, LeftVentricular Dysfunction, LeftMitral ValveHeart VentriclesStroke VolumeMitral Valve InsufficiencyHeart DiseasesHeart AtriaHeart Septal Defects, AtrialHeart Valve DiseasesDiastoleObserver VariationPredictive Value of TestsSystoleCardiac CatheterizationHeart Defects, CongenitalHeart NeoplasmsElectrocardiographyExercise TestMyocardial ContractionSensitivity and SpecificityAortic ValveCardiotonic AgentsFetal HeartEchocardiography, Four-DimensionalContrast MediaHypertrophy, Left VentricularProspective StudiesFeasibility StudiesHeart SeptumHemodynamicsBlood Flow VelocityCoronary CirculationHeart Valve ProsthesisTricuspid Valve InsufficiencyAortic Valve InsufficiencyTricuspid ValveHeartAortic Valve StenosisReproducibility of ResultsMitral Valve ProlapseCardiomyopathiesMitral Valve StenosisHeart FailureMyocardial InfarctionAtrial Function, LeftDipyridamoleCardiac VolumeVentricular RemodelingMyocardial IschemiaVentricular Function, RightPericardial EffusionVentricular Dysfunction, RightCoronary AngiographyCoronary DiseaseHeart Valve Prosthesis ImplantationCardiomyopathy, HypertrophicHeart MurmursFollow-Up StudiesMyocardiumHeart Septal Defects, VentricularMyxomaCardiomyopathy, DilatedEmbolismHeart AneurysmCardiac Surgical ProceduresAtrial AppendageFluorocarbonsHypertension, PulmonaryHeart Function TestsUltrasonography, PrenatalEndocarditisTreatment OutcomePulmonary ArteryTime FactorsForamen Ovale, PatentTomography, Emission-Computed, Single-PhotonThrombosisMyocardial StunningPrognosisSeverity of Illness IndexVentricular DysfunctionPhonocardiographyNatriuretic Peptide, BrainChordae TendineaeTissue SurvivalAtrial FibrillationEndocarditis, BacterialIntraoperative CarePulmonary VeinsCardiac OutputVentricular Function