EchocardiographyTomography, X-Ray ComputedEchocardiography, TransesophagealEchocardiography, Three-DimensionalEchocardiography, DopplerEchocardiography, StressEchocardiography, Doppler, ColorTomographyEchocardiography, Doppler, PulsedDobutaminePositron-Emission TomographyTomography, Optical CoherenceVentricular Function, LeftVentricular Dysfunction, LeftTomography, Emission-ComputedMitral ValveTomography, Emission-Computed, Single-PhotonHeart VentriclesStroke VolumeTomography, Spiral ComputedSensitivity and SpecificityPredictive Value of TestsHeart DiseasesMitral Valve InsufficiencyMultidetector Computed TomographyObserver VariationHeart AtriaTomography, OpticalHeart Septal Defects, AtrialContrast MediaHeart Valve DiseasesCardiac CatheterizationDiastoleReproducibility of ResultsProspective StudiesElectrocardiographyExercise TestHeart NeoplasmsSystoleHeart Defects, CongenitalMyocardial ContractionFeasibility StudiesAortic ValveCone-Beam Computed TomographyElectron Microscope TomographyCardiotonic AgentsCoronary CirculationBlood Flow VelocityHemodynamicsFetal HeartEchocardiography, Four-DimensionalHeartHypertrophy, Left VentricularCoronary AngiographyHeart Valve ProsthesisHeart SeptumTomography, X-RayTricuspid Valve InsufficiencyAortic Valve InsufficiencyAortic Valve StenosisFollow-Up StudiesMyocardial InfarctionDipyridamoleTricuspid ValveCardiomyopathiesMyocardial IschemiaTreatment OutcomeMagnetic Resonance ImagingHeart FailureMitral Valve StenosisMitral Valve ProlapseAtrial Function, LeftFluorodeoxyglucose F18Image Processing, Computer-AssistedPericardial EffusionCardiac VolumeCoronary DiseaseVentricular RemodelingVentricular Dysfunction, RightVentricular Function, RightTime FactorsHeart Valve Prosthesis ImplantationRetrospective StudiesMyocardiumCardiomyopathy, HypertrophicImaging, Three-DimensionalHeart MurmursSeverity of Illness IndexCardiomyopathy, DilatedEmbolismCardiac Surgical ProceduresPrognosisMyxomaHeart AneurysmHeart Septal Defects, VentricularTomography Scanners, X-Ray ComputedAtrial AppendageFluorocarbonsHypertension, PulmonaryPulmonary Artery