RadiographyRadiography, ThoracicAntistatic AgentsBile DuctsPancreatic DuctsRadiography, PanoramicThoracic DuctCommon Bile DuctCystic DuctRadiography, BitewingRadiographic Image EnhancementSalivary DuctsRadiography, AbdominalX-Ray Intensifying ScreensBile Duct DiseasesWolffian DuctsBile Ducts, ExtrahepaticX-Ray FilmMullerian DuctsHepatic Duct, CommonTomography, X-Ray ComputedMass Chest X-RayKidney Tubules, CollectingRadiography, Dual-Energy Scanned ProjectionMetacarpophalangeal JointNasolacrimal DuctEjaculatory DuctsRadiology Information SystemsArthrographyRadiology Department, HospitalRadiation DosageTomography, X-RaySensitivity and SpecificityRadiation ProtectionVitelline DuctCone-Beam Computed TomographyMandibleRadiographic Image Interpretation, Computer-AssistedLacrimal Duct ObstructionForeign BodiesEndolymphatic DuctEducational StatusCholangiopancreatography, Endoscopic RetrogradeObserver VariationFinger JointReproducibility of ResultsAnkle InjuriesMagnetic Resonance ImagingTechnology, RadiologicGallstonesCholangiographyCommon Bile Duct NeoplasmsCholestasisRadiographic MagnificationCarpal BonesAdenoma, Bile DuctThermoluminescent DosimetrySkull FracturesDiagnostic ImagingUltrasonographyWrist JointSpinal InjuriesRadiologyRetrospective StudiesCochlear DuctAnatomic LandmarksColaCholestasis, ExtrahepaticForeign-Body MigrationPhysical ExaminationPneumoconiosisFemurFoot InjuriesLumbar VertebraeRadiography, InterventionalKnee JointSubtraction TechniqueComputer Storage DevicesProspective StudiesAnthracosisPatient PositioningKidney MedullaTechnetium Tc 99m MedronateFractures, BoneUnnecessary ProceduresCervical VertebraeFrontal SinusitisEthmoid SinusitisLungImage Processing, Computer-AssistedTreatment OutcomeLigationEmergency Service, HospitalFollow-Up StudiesCholecystectomy, LaparoscopicPneumothoraxSphenoid SinusitisSpineUrographyPhantoms, Imaging