Tomography, X-Ray ComputedTomographyPositron-Emission TomographyTomography, Optical CoherenceTomography, Emission-ComputedTomography, Spiral ComputedTomography, OpticalGamma RaysRadiographyMultidetector Computed TomographyTomography, Emission-Computed, Single-PhotonCone-Beam Computed TomographyElectron Microscope TomographyTomography, X-RayElectron Probe MicroanalysisFluorodeoxyglucose F18PneumoconiosisElasmobranchiiTomography Scanners, X-Ray ComputedSkates (Fish)Imaging, Three-DimensionalRadiation DosageSensitivity and SpecificityFast NeutronsRadiology Department, HospitalReproducibility of ResultsMagnetic Resonance ImagingWrist JointImage Processing, Computer-AssistedProspective StudiesRetrospective StudiesRadiation EffectsPredictive Value of TestsUltraviolet RaysTeleradiologySpectrometry, X-Ray EmissionDose-Response Relationship, RadiationMetacarpophalangeal JointAluminum SilicatesAnimal FinsMetacarpusPhantoms, ImagingObserver VariationRadiographic Image Interpretation, Computer-AssistedX-Ray MicrotomographyTime FactorsX ChromosomeCathode Ray TubeFluorine RadioisotopesMultimodal ImagingCraniocerebral TraumaPleuraAsbestosisLungDiagnostic ErrorsEmergency Service, HospitalRadiometryCadmium RadioisotopesForeign BodiesDental TechniciansFollow-Up StudiesDiagnostic ImagingRadiation GeneticsCosmic RadiationCalcaneusOccupational DiseasesQuartzBone Diseases, MetabolicAsbestosSeverity of Illness IndexFour-Dimensional Computed TomographyRadiographic Image EnhancementBrainContrast MediaArthritis, RheumatoidOccupational ExposureTreatment OutcomeRadiography, AbdominalRadiation ToleranceCalcinosisLung NeoplasmsAlgorithmsOsteoporosisRadiography, ThoracicSpinal OsteophytosisFractures, BoneMacula LuteaTibiaCoronary AngiographyBone and BonesEquipment DesignOxygen RadioisotopesCarbon RadioisotopesMetallurgyCervical VertebraeDiagnostic Techniques, OphthalmologicalSpinal DiseasesPrognosisFemurImage Enhancement