Reference StandardsSensitivity and SpecificityReproducibility of ResultsReference ValuesObserver VariationDiagnostic Techniques and ProceduresPredictive Value of TestsTomography, X-Ray ComputedROC CurveDiagnostic Tests, RoutineAlgorithmsProspective StudiesContrast MediaRadiographic Image Interpretation, Computer-AssistedReagent Kits, DiagnosticMagnetic Resonance ImagingClinical Laboratory TechniquesImaging, Three-DimensionalQuality ControlRadiologyAngiography, Digital SubtractionImage Interpretation, Computer-AssistedRadiographic Image EnhancementBignoniaceaeImage Processing, Computer-AssistedMagnetic Resonance AngiographyClinical CodingCineradiographyImage EnhancementNatural Language ProcessingReagent StripsPolymerase Chain ReactionRetrospective StudiesCalibrationMicroscopyPhotographyAutomationPhysical ExaminationDiagnostic ErrorsMultidetector Computed TomographyPoint-of-Care SystemsOphthalmoscopyTime FactorsImmunoassayMass ScreeningMolecular Diagnostic TechniquesEvaluation Studies as TopicUltrasonographyFalse Positive ReactionsPositron-Emission TomographyColonography, Computed TomographicX-Ray Intensifying ScreensChromatography, High Pressure LiquidMEDLINESputumBacteriological TechniquesRadiography, ThoracicInformation Storage and RetrievalDatabases, FactualEnzyme-Linked Immunosorbent AssayFeasibility StudiesFractional Flow Reserve, MyocardialSingle-Blind MethodArea Under CurvePattern Recognition, AutomatedCross-Sectional StudiesSeverity of Illness IndexGadolinium DTPASoftwareParasitologyPhantoms, ImagingUrinalysisCardiac-Gated Imaging TechniquesResearch DesignNucleic Acid Amplification TechniquesRadiopharmaceuticalsInfant, NewbornSolitary Pulmonary NoduleVasospasm, IntracranialOphthalmologyTreatment OutcomeStatistics, NonparametricMagnetic Resonance Imaging, CineUnited StatesLikelihood FunctionsFluorodeoxyglucose F18Diagnosis, Computer-AssistedStandard of CareModels, StatisticalBiological AssayTomography, Spiral ComputedMyocardial Perfusion ImagingMass SpectrometrySerologic TestsDiagnostic ImagingCohort StudiesUltrasonography, MammaryAnthropometryConfidence IntervalsLinear Models