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 DiseasesSystoleProspective StudiesCardiac CatheterizationUltrasonography, PrenatalMitral Valve InsufficiencyHeart AtriaHeart Septal Defects, AtrialReproducibility of ResultsHeart Valve DiseasesMyocardial ContractionFetal HeartHeart Defects, CongenitalHemodynamicsContrast MediaElectrocardiographyCoronary CirculationAortic ValveExercise TestTricuspid Valve InsufficiencyFeasibility StudiesHeart NeoplasmsCardiotonic AgentsEchocardiography, Four-DimensionalTricuspid ValveHeart SeptumHeart Valve ProsthesisAortic Valve StenosisLaser-Doppler FlowmetryPhysical ExaminationVentricular Function, RightFollow-Up StudiesAtrial Function, LeftHeartHypertrophy, Left VentricularCardiomyopathiesMitral Valve StenosisHeart FailureUltrasonographyPulsatile FlowTime FactorsVentricular Dysfunction, RightCardiac VolumeMyocardial InfarctionAortic Valve InsufficiencyMitral Valve ProlapseDipyridamoleMyocardial IschemiaHeart MurmursVentricular RemodelingPericardial EffusionCoronary AngiographyTreatment OutcomeCardiomyopathy, HypertrophicPregnancyCoronary DiseaseHeart Septal Defects, VentricularRegional Blood FlowBlood PressurePulmonary ArteryUmbilical ArteriesCardiomyopathy, DilatedSeverity of Illness IndexHeart Valve Prosthesis ImplantationMyocardiumFluorocarbonsRetrospective StudiesHypertension, PulmonaryCardiac OutputCardiac Surgical ProceduresMagnetic Resonance ImagingHeart Function TestsFetal DiseasesHeart AneurysmPrognosisAtrial AppendageMyxoma