Tomography, X-Ray ComputedTomographyGamma RaysPositron-Emission TomographyTomography, Optical CoherenceTomography, Emission-ComputedTomography, Spiral ComputedRadiographyElasmobranchiiSkates (Fish)Tomography, OpticalMultidetector Computed TomographyTomography, Emission-Computed, Single-PhotonCone-Beam Computed TomographyElectron Microscope TomographyElectron Probe MicroanalysisTomography, X-RayAnimal FinsRadiation DosageFluorodeoxyglucose F18PneumoconiosisCathode Ray TubePhantoms, ImagingSensitivity and SpecificityTomography Scanners, X-Ray ComputedUltraviolet RaysImaging, Three-DimensionalReproducibility of ResultsImage Processing, Computer-AssistedCosmic RadiationFast NeutronsRadiology Department, HospitalMagnetic Resonance ImagingTime FactorsDose-Response Relationship, RadiationWrist JointRadiation EffectsProspective StudiesRadiographic Image Interpretation, Computer-AssistedRetrospective StudiesLungSpectrometry, X-Ray EmissionPredictive Value of TestsRadiometryCalcaneusTeleradiologyAluminum SilicatesMetacarpophalangeal JointMetacarpusArtifactsX-Ray MicrotomographyObserver VariationRadiographic Image EnhancementMultimodal ImagingDiagnostic ErrorsPleuraBrainAlgorithmsFluorine RadioisotopesCraniocerebral TraumaAsbestosisX-RaysRadiation GeneticsEmergency Service, HospitalCadmium RadioisotopesX ChromosomePseudotsugaFollow-Up StudiesDental TechniciansInfrared RaysSensillaImage EnhancementForeign BodiesCobalt RadioisotopesContrast MediaOccupational DiseasesDiagnostic ImagingBone Diseases, MetabolicSeverity of Illness IndexQuartzAsbestosRadiation ToleranceEquipment DesignOccupational ExposureMutationTailBermudaSolar ActivityTreatment OutcomeArthritis, RheumatoidPinus ponderosaBone and BonesLung NeoplasmsFour-Dimensional Computed TomographyOsteoporosisLinear Energy TransferRadiography, AbdominalFractures, BoneCalcinosisSpinal Osteophytosis