Reference StandardsSpectrophotometry, AtomicNitric AcidTrace ElementsCalibrationFlow Injection AnalysisSensitivity and SpecificityReproducibility of ResultsReference ValuesObserver VariationDiagnostic Techniques and ProceduresPredictive Value of TestsTomography, X-Ray ComputedROC CurveDiagnostic Tests, RoutineAlgorithmsProspective StudiesReagent Kits, DiagnosticQuality ControlContrast MediaRadiographic Image Interpretation, Computer-AssistedClinical Laboratory TechniquesMagnetic Resonance ImagingImaging, Three-DimensionalImage Interpretation, Computer-AssistedRadiologyRadiographic Image EnhancementAngiography, Digital SubtractionImage Processing, Computer-AssistedBignoniaceaePolymerase Chain ReactionMagnetic Resonance AngiographyImage EnhancementRetrospective StudiesCineradiographyClinical CodingReagent StripsNatural Language ProcessingTime FactorsMicroscopyAutomationDiagnostic ErrorsPhotographyImmunoassayPoint-of-Care SystemsPhysical ExaminationEvaluation Studies as TopicMultidetector Computed TomographyOphthalmoscopySoftwareFalse Positive ReactionsPositron-Emission TomographyMass ScreeningMolecular Diagnostic TechniquesDatabases, FactualUltrasonographyInformation Storage and RetrievalChromatography, High Pressure LiquidCross-Sectional StudiesBacteriological TechniquesMEDLINEEnzyme-Linked Immunosorbent AssayInfant, NewbornX-Ray Intensifying ScreensFeasibility StudiesColonography, Computed TomographicRadiography, ThoracicSputumPattern Recognition, AutomatedPhantoms, ImagingSeverity of Illness IndexArea Under CurveSingle-Blind MethodRadiopharmaceuticalsGadolinium DTPAFractional Flow Reserve, MyocardialResearch DesignTreatment OutcomeUnited StatesParasitologyUrinalysisNucleic Acid Amplification TechniquesStatistics, NonparametricCardiac-Gated Imaging TechniquesModels, StatisticalWorld Health OrganizationOphthalmologyAnthropometryCohort StudiesSolitary Pulmonary NoduleLikelihood FunctionsDiagnosis, Computer-AssistedVasospasm, IntracranialBiological AssayMagnetic Resonance Imaging, CineStatistics as TopicMass SpectrometryTerminology as TopicLinear ModelsFluorodeoxyglucose F18