EchocardiographyEchocardiography, DopplerMitral Valve InsufficiencyEchocardiography, Doppler, ColorColorTricuspid Valve InsufficiencyMitral ValveEchocardiography, TransesophagealUltrasonography, Doppler, ColorEchocardiography, Three-DimensionalAortic Valve InsufficiencyBlood Flow VelocityHeart Valve DiseasesUltrasonography, DopplerEchocardiography, StressEchocardiography, Doppler, PulsedHeart Septal Defects, VentricularCardiac CatheterizationHeart ValvesDoppler EffectColor PerceptionCoronary CirculationAortic ValveVentricular Function, LeftModels, CardiovascularHeart Valve ProsthesisHeart Valve Prosthesis ImplantationHeart DiseasesCoronary Vessel AnomaliesPulmonary Valve InsufficiencyUltrasonography, Doppler, PulsedVentricular Dysfunction, LeftStroke VolumeMitral Valve ProlapsePulmonary ArteryChordae TendineaeUltrasonographyMitral Valve AnnuloplastyTricuspid ValveHeart VentriclesDobutamineRegional Blood FlowDiastoleAortic Valve StenosisSystoleObserver VariationHemodynamicsColor VisionUltrasonography, Doppler, TranscranialPredictive Value of TestsProspective StudiesMitral Valve StenosisCardiac Surgical ProceduresHeart AtriaColor Perception TestsSensitivity and SpecificityHeart Defects, CongenitalCardiac Valve AnnuloplastyHeart MurmursMyocardial ContractionFollow-Up StudiesTreatment OutcomeRheumatic Heart DiseaseHeart Septal Defects, AtrialVentricular Function, RightElectrocardiographyReproducibility of ResultsVentricular RemodelingPulmonary ValveInfant, NewbornUltrasonography, PrenatalSeverity of Illness IndexFetal HeartExercise TestColor Vision DefectsPhonocardiographyFeasibility StudiesTetralogy of FallotCardiac VolumeHair ColorBioprosthesisVentricular Dysfunction, RightMyocardial IschemiaHeart FailureTime FactorsPapillary MusclesContrast MediaAtrial Function, LeftHeart NeoplasmsEndocarditisCardiomyopathy, DilatedHeart SeptumHypertrophy, Left VentricularCardiomyopathiesRetrospective StudiesHeartCardiotonic AgentsCardiomyopathy, HypertrophicPulsatile FlowMyocardial Infarction