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-DimensionalImage Processing, Computer-AssistedSensitivity and SpecificityMagnetic Resonance ImagingReproducibility of ResultsX-Ray MicrotomographyMultimodal ImagingFluorine RadioisotopesRadiographic Image Interpretation, Computer-AssistedPhantoms, ImagingPredictive Value of TestsBrainDiagnostic ImagingFour-Dimensional Computed TomographyWord Association TestsRetrospective StudiesContrast MediaVocabularyRadiography, AbdominalCalcinosisRadiographic Image EnhancementTreatment OutcomeProspective StudiesRadiography, ThoracicMacula LuteaCoronary AngiographyOxygen RadioisotopesAlgorithmsCarbon RadioisotopesTime FactorsDiagnostic Techniques, OphthalmologicalCerebrovascular CirculationObserver VariationCoronary Artery DiseaseImage EnhancementBronchographyFollow-Up StudiesNerve FibersAnatomy, Cross-SectionalEquipment DesignRadiation DosageOptic DiskArtifactsIncidental FindingsOptical PhenomenaSemanticsAngiographyLung NeoplasmsVisual AcuitySolitary Pulmonary NoduleThallium RadioisotopesOrganotechnetium CompoundsFeasibility StudiesFluorescein AngiographySeverity of Illness IndexAortographyLanguageOptic Nerve DiseasesCryoelectron MicroscopyCoronary StenosisUltrasonographyWord ProcessingCoronary VesselsMyocardial Perfusion ImagingPrognosisRetinal Ganglion CellsPreoperative CareRetinaMacular EdemaTechnetium Tc 99m SestamibiPhoneticsInterferometryBrain MappingRetinal DiseasesPsycholinguisticsEquipment Failure AnalysisNeoplasm StagingROC CurveCopper RadioisotopesNitrogen RadioisotopesReference ValuesRadioactive TracersOphthalmoscopyFovea CentralisGallium RadioisotopesIopamidol