Echo-Planar ImagingEcholocationImage EnhancementMagnetic Resonance ImagingSensitivity and SpecificityImage Interpretation, Computer-AssistedReproducibility of ResultsChiropteraPhantoms, ImagingArtifactsDiagnostic Tests, RoutineContrast MediaUltrasonographyEchocardiographyImaging, Three-DimensionalAlgorithmsEchocardiography, TransesophagealTime FactorsDoppler EffectProspective StudiesUltrasonicsFeasibility StudiesObserver VariationMagnetic Resonance SpectroscopySignal-To-Noise RatioTransducersGadolinium DTPAEchovirus InfectionsRetrospective StudiesEchovirus 9Magnetic Resonance Imaging, CinePredictive Value of TestsSignal Processing, Computer-AssistedBrainSpectrophotometry, InfraredTreatment OutcomeSpin LabelsMitral Valve StenosisRadio WavesFourier AnalysisMagnetic Resonance AngiographyFollow-Up StudiesAuditory PerceptionHeart DiseasesEchocardiography, StressSoundEchocardiography, DopplerEvaluation Studies as TopicAtrial Function, LeftReference ValuesInfant, NewbornEquipment DesignDipyridamoleBlood Flow VelocityEnterovirus B, HumanPregnancyMass ScreeningHeart VentriclesMitral ValveFerrosoferric OxideRisk FactorsHeart AtriaStroke VolumeElectrocardiographyTomography, X-Ray ComputedComputer SimulationUltrasonography, MammaryMeningitis, ViralThermographySeverity of Illness IndexCreatineNew MexicoVibrationPrognosisProtonsVentricular Function, LeftPattern Recognition, PhysiologicalCineradiographyEchoencephalographyPilot ProjectsQuality ControlVentricular Dysfunction, LeftAtrioventricular NodeThrombosisMagnetite NanoparticlesUltrasonography, Doppler, ColorPreoperative CareSound SpectrographyWaterAutomationBacteriological TechniquesThromboembolismMotionFalse Positive ReactionsPrevalenceAcoustic StimulationDobutamineRisk AssessmentSound LocalizationEchocardiography, Doppler, Color