Ventricular Function, LeftUltrasonography, DopplerVentricular Function, RightUltrasonography, Doppler, ColorVentricular Dysfunction, LeftVentricular FunctionStroke VolumeDoppler EffectEchocardiography, Doppler, PulsedUltrasonography, Doppler, PulsedHeart VentriclesEchocardiographyEchocardiography, Doppler, ColorBlood Flow VelocityMyocardial ContractionDiastoleUltrasonography, Doppler, TranscranialSystoleHeartHemodynamicsMyocardial InfarctionVentricular Dysfunction, RightCoronary CirculationRadionuclide VentriculographyHeart FailureElectrocardiographyMyocardiumGated Blood-Pool ImagingCardiac CatheterizationHeart Function TestsRadionuclide AngiographyProspective StudiesEchocardiography, DopplerHypertrophy, Left VentricularCardiomyopathy, DilatedCardiac OutputTime FactorsMitral ValveHeart RateBlood PressureVentricular RemodelingCoronary DiseaseVentricular PressureCardiac VolumePredictive Value of TestsLaser-Doppler FlowmetryCardiomyopathiesCineangiographyAtrial Function, LeftFollow-Up StudiesTreatment OutcomeMyocardial IschemiaDobutamineVentriculography, First-PassExercise TestVentricular DysfunctionRegional Blood FlowCoronary AngiographyPhonocardiographyCardiac Pacing, ArtificialCardiotonic AgentsAortic Valve StenosisAngiocardiographyTricuspid ValveObserver VariationReproducibility of ResultsCoronary Artery BypassCoronary VesselsDogsUltrasonography, PrenatalTomography, Emission-Computed, Single-PhotonHeart DiseasesMagnetic Resonance Imaging, CinePulsatile FlowVascular ResistanceSensitivity and SpecificityPulmonary ArteryUmbilical ArteriesMyocardial ReperfusionMitral Valve InsufficiencyUltrasonographyEchocardiography, StressGold RadioisotopesAngioplasty, Balloon, CoronaryAngina PectorisHeart AtriaPrognosisAdrenergic beta-AntagonistsContrast MediaEchocardiography, TransesophagealNatriuretic Peptide, BrainMyocardial Reperfusion InjuryTechnetium Tc 99m SestamibiAortic ValveTetralogy of FallotHeart SeptumHeart Valve ProsthesisKinetocardiographyHeart Defects, CongenitalCineradiography