Radiation DosageAngiographyCoronary AngiographyRadiation ProtectionDose-Response Relationship, RadiationRadiation InjuriesMagnetic Resonance AngiographyCerebral AngiographyRadiometryRadiation MonitoringAngiography, Digital SubtractionRadiation, IonizingTomography, X-Ray ComputedBody BurdenRadiotherapy DosageRadiation ToleranceNeoplasms, Radiation-InducedThermoluminescent DosimetryRadiationFluorescein AngiographyRadiography, InterventionalFluoroscopyRadiographic Image Interpretation, Computer-AssistedRelative Biological EffectivenessRadiotherapyRadiographic Image EnhancementGamma RaysPhantoms, ImagingContrast MediaNuclear WeaponsRadioactive Hazard ReleaseRadiation OncologyCosmic RadiationRadioisotopesNuclear WarfareSensitivity and SpecificityRadioactive FalloutCesium RadioisotopesTomography, Spiral ComputedRadiotherapy, ConformalImaging, Three-DimensionalCardiac-Gated Imaging TechniquesRadiation Injuries, ExperimentalTreatment OutcomeRadiation PneumonitisMultidetector Computed TomographyTime FactorsBackground RadiationRadiotherapy Planning, Computer-AssistedCombined Modality TherapyFilm DosimetryRetrospective StudiesRadioimmunotherapyRadiotherapy, Intensity-ModulatedRadionuclide AngiographyCoronary Artery DiseaseReproducibility of ResultsYttrium RadioisotopesIntracranial AneurysmIodine RadioisotopesDose FractionationWhole-Body CountingRadiation-Sensitizing AgentsProspective StudiesCobalt RadioisotopesTechnology, RadiologicIopamidolCoronary StenosisImage Processing, Computer-AssistedRadiopharmaceuticalsRadiation EffectsFollow-Up StudiesLeukemia, Radiation-InducedRadiology, InterventionalRadiation-Protective AgentsBrachytherapyBeta ParticlesIntracranial Arteriovenous MalformationsNuclear MedicineX-RaysPredictive Value of TestsIohexolUkraineSoil Pollutants, RadioactiveCone-Beam Computed TomographyChernobyl Nuclear AccidentFeasibility StudiesAcute Radiation SyndromeEmbolization, TherapeuticUltraviolet RaysPower PlantsRadiographyOrgans at RiskNuclear ReactorsArtifactsRadiosurgeryAir Pollution, RadioactiveCoronary VesselsRisk AssessmentRadiobiology