EchocardiographyEchocardiography, TransesophagealEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, Doppler, ColorUltrasonography, DopplerEchocardiography, StressEchocardiography, Doppler, PulsedUltrasonography, Doppler, ColorDoppler EffectUltrasonography, Doppler, PulsedBlood Flow VelocityDobutamineVentricular Function, LeftVentricular Dysfunction, LeftMitral ValveUltrasonography, Doppler, TranscranialHeart VentriclesStroke VolumeDiastoleSensitivity and SpecificityObserver VariationPredictive Value of TestsHeart DiseasesSystoleCardiac CatheterizationProspective StudiesMitral Valve InsufficiencyHeart AtriaHeart Septal Defects, AtrialReproducibility of ResultsMyocardial ContractionUltrasonography, PrenatalHeart Valve DiseasesHemodynamicsFetal HeartHeart Defects, CongenitalCoronary CirculationElectrocardiographyExercise TestContrast MediaAortic ValveFeasibility StudiesTricuspid Valve InsufficiencyHeart NeoplasmsCardiotonic AgentsEchocardiography, Four-DimensionalTricuspid ValveAortic Valve StenosisHeart SeptumHeart Valve ProsthesisLaser-Doppler FlowmetryVentricular Function, RightAtrial Function, LeftHeartHypertrophy, Left VentricularHeart FailureMitral Valve StenosisCardiomyopathiesCardiac VolumeVentricular Dysfunction, RightMyocardial InfarctionPulsatile FlowFollow-Up StudiesAortic Valve InsufficiencyDipyridamoleMitral Valve ProlapseMyocardial IschemiaTime FactorsVentricular RemodelingHeart MurmursCoronary AngiographyCardiomyopathy, HypertrophicCoronary DiseaseTreatment OutcomePericardial EffusionUltrasonographyHeart Septal Defects, VentricularRegional Blood FlowPulmonary ArteryCardiomyopathy, DilatedBlood PressureSeverity of Illness IndexUmbilical ArteriesHeart Valve Prosthesis ImplantationPregnancyMyocardiumCardiac OutputFluorocarbonsHypertension, PulmonaryCardiac Surgical ProceduresHeart Function TestsHeart AneurysmAtrial AppendageImage Interpretation, Computer-AssistedPhonocardiographyPrognosisMyxomaEmbolismMonitoring, Intraoperative