Microscopy, Phase-ContrastTomography, X-Ray ComputedTomography, X-RaySynchrotronsTomographyInterferometryImaging, Three-DimensionalPositron-Emission TomographyX-RaysMagnetic Resonance Imaging, CineTomography, Optical CoherencePhantoms, ImagingImage Processing, Computer-AssistedMineral FibersTomography, Emission-ComputedMagnetic Resonance AngiographyReproducibility of ResultsTomography, Spiral ComputedImage Interpretation, Computer-AssistedRadiographyTomography, OpticalLensesRadiographic Image EnhancementMagnetic Resonance ImagingTriacetinGamma RaysContrast MediaSensitivity and SpecificityMultidetector Computed TomographyX-Ray MicrotomographyCardiac-Gated Imaging TechniquesArtifactsBlood Flow VelocityTomography, Emission-Computed, Single-PhotonMicroscopy, InterferenceImage EnhancementCone-Beam Computed TomographyElectron Microscope TomographyEquipment DesignMicroscopyAlgorithmsRadiographic Image Interpretation, Computer-AssistedPolystyrenesAbsorptionEquipment Failure AnalysisAsbestos, SerpentineAir Pollutants, OccupationalAsbestosMicroscopy, ElectronFluorodeoxyglucose F18Scattering, RadiationMicroscopy, Electron, ScanningMicroscopy, Electron, TransmissionElasmobranchiiTomography Scanners, X-Ray ComputedSkates (Fish)RheologyTime FactorsModels, TheoreticalPredictive Value of TestsPulmonary ArteryCells, CulturedRegional Blood FlowX-Ray DiffractionStress, MechanicalMicroscopy, FluorescenceStaining and LabelingAnimal FinsCell Culture TechniquesCathode Ray TubeMultimodal ImagingFluorine RadioisotopesCell AdhesionModels, BiologicalEpithelial CellsRadiation DosageDiagnostic ImagingCosmic RadiationRetrospective StudiesRabbitsFour-Dimensional Computed TomographyCell Line, TumorActinsCell MovementBrainCell SurvivalProspective StudiesRadiography, AbdominalTreatment OutcomeApoptosisCalcinosisCell DivisionUltraviolet RaysRadiography, ThoracicMacula LuteaCoronary AngiographyObserver VariationOxygen RadioisotopesDiagnostic Techniques, OphthalmologicalCarbon Radioisotopes