PulseEcho-Planar ImagingEcholocationPulse Therapy, DrugImage EnhancementMagnetic Resonance ImagingPhantoms, ImagingImage Interpretation, Computer-AssistedChiropteraPulse Wave AnalysisArtifactsReproducibility of ResultsOximetryPulse RadiolysisPulsatile FlowContrast MediaSensitivity and SpecificityUltrasonographyAlgorithmsSignal Processing, Computer-AssistedTime FactorsEchocardiographyRadio WavesImaging, Three-DimensionalUltrasonicsTransducersMagnetic Resonance SpectroscopyEchocardiography, TransesophagealDoppler EffectBlood PressureElectric StimulationSignal-To-Noise RatioBlood Flow VelocityGadolinium DTPAMagnetic Resonance Imaging, CineSpin LabelsBrainSpectrophotometry, InfraredEchovirus 9Fourier AnalysisEchovirus InfectionsEquipment DesignLasersSoundAuditory PerceptionObserver VariationElectroporationFeasibility StudiesElasticityComputer SimulationProspective StudiesMitral Valve StenosisLuteinizing HormoneAction PotentialsMagnetic Resonance AngiographyEchocardiography, DopplerHeart VentriclesAmplifiers, ElectronicHeart RateEquipment Failure AnalysisAcoustic StimulationMembrane PotentialsPredictive Value of TestsProtonsArteriesVibrationStroke VolumeSystoleAtrial Function, LeftEchocardiography, StressElectromagnetic FieldsHeart AtriaSound SpectrographyMethylprednisoloneHeart DiseasesElectrophysiologyReference ValuesPhotoplethysmographyThermographyWaterElectrocardiographyCreatineDipyridamoleEnterovirus B, HumanFerrosoferric OxideCarotid ArteriesRadial ArteryOxygenHemodynamicsVentricular Function, LeftKineticsCompliancePattern Recognition, PhysiologicalGonadotropin-Releasing HormonePeriodicityDiastoleVocalization, AnimalMagneticsBrain MappingElectricity