Elasticity Imaging TechniquesElastic ModulusAcousticsTransducersPhantoms, ImagingShear StrengthElasticityAlgorithmsViscosityDoppler EffectVibrationStress, MechanicalBiomechanical PhenomenaMotionUltrasonography, MammarySignal-To-Noise RatioSignal Processing, Computer-AssistedComputer SimulationModels, CardiovascularImage Interpretation, Computer-AssistedUltrasonicsIsosorbide DinitrateModels, BiologicalArtifactsImage EnhancementFinite Element AnalysisReproducibility of ResultsCompressive StrengthInjections, Intra-ArterialPhotoacoustic TechniquesTensile StrengthBlood Flow VelocityCardiologyEmollientsSensitivity and SpecificityModels, TheoreticalUltrasonographyImage Processing, Computer-AssistedHardnessMaterials TestingPressureAortaRheologyPliabilityBreast DiseasesLiver CirrhosisDental Stress AnalysisSwineMechanical ProcessesHemorheologyFeasibility StudiesTime FactorsHardness TestsSurface PropertiesLiverElectrodesMuscle, SkeletalMethacrylatesAgingMicroscopy, Atomic ForceHigh-Energy Shock WavesLinear ModelsMechanical PhenomenaHydrogelsWeight-BearingProstateMechanotransduction, CellularDogsComposite ResinsGaitAcrylic ResinsTissue EngineeringCattlePolyurethanesResin CementsMicroscopy, Electron, Scanning