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Tomography, X-Ray ComputedTomographyPositron-Emission TomographyTomography, Optical CoherenceTomography, Emission-ComputedTomography, Spiral ComputedTomography, OpticalMultidetector Computed TomographyTomography, Emission-Computed, Single-PhotonCone-Beam Computed TomographyElectron Microscope TomographyTomography, X-RayFluorodeoxyglucose F18Tomography Scanners, X-Ray ComputedImaging, Three-DimensionalSensitivity and SpecificityImage Processing, Computer-AssistedReproducibility of ResultsMagnetic Resonance ImagingX-Ray MicrotomographyFluorine RadioisotopesMultimodal ImagingRadiographic Image Interpretation, Computer-AssistedPhantoms, ImagingAlgorithmsDiagnostic ImagingPrinciple-Based EthicsPredictive Value of TestsBrainTreatment OutcomeRetrospective StudiesFour-Dimensional Computed TomographyBeneficenceContrast MediaRadiographic Image EnhancementEquipment DesignRadiography, AbdominalProspective StudiesCalcinosisTime FactorsRadiography, ThoracicMacula LuteaCoronary AngiographyCarbon RadioisotopesDiagnostic Techniques, OphthalmologicalModels, BiologicalImage EnhancementOxygen RadioisotopesObserver VariationFollow-Up StudiesRadiation DosageCerebrovascular CirculationCoronary Artery DiseaseAnatomy, Cross-SectionalArtifactsOptical PhenomenaBronchographyComputer SimulationNerve FibersEthical TheoryOptic DiskFeasibility StudiesPersonal AutonomyModels, TheoreticalIncidental FindingsLung NeoplasmsAngiographyCryoelectron MicroscopyEquipment Failure AnalysisVisual AcuitySeverity of Illness IndexEthics, MedicalSolitary Pulmonary NoduleOrganotechnetium CompoundsThallium RadioisotopesUltrasonographyPrognosisFluorescein AngiographyAortographyOptic Nerve DiseasesModels, AnatomicInterferometryPreoperative CareRetinaCoronary StenosisMoral ObligationsOptics and PhotonicsRadioactive TracersRetinal Ganglion CellsCoronary VesselsMyocardial Perfusion ImagingMacular EdemaNeoplasm StagingTechnetium Tc 99m SestamibiROC CurveOptical ProcessesLungSubtraction TechniqueSocial JusticeRisk Assessment