Reference StandardsSensitivity and SpecificityReproducibility of ResultsReference ValuesObserver VariationPredictive Value of TestsDiagnostic Techniques and ProceduresSpecimen HandlingTomography, X-Ray ComputedROC CurveAlgorithmsReagent Kits, DiagnosticDiagnostic Tests, RoutineProspective StudiesPolymerase Chain ReactionQuality ControlClinical Laboratory TechniquesContrast MediaRadiographic Image Interpretation, Computer-AssistedMagnetic Resonance ImagingImaging, Three-DimensionalImage Processing, Computer-AssistedImage Interpretation, Computer-AssistedEvaluation Studies as TopicRadiographic Image EnhancementAngiography, Digital SubtractionRadiologyRetrospective StudiesBacteriological TechniquesBignoniaceaeTime FactorsDiagnostic ErrorsCalibrationMicroscopyImage EnhancementReagent StripsMagnetic Resonance AngiographyImmunoassayAutomationCineradiographyClinical CodingMolecular Diagnostic TechniquesNatural Language ProcessingFalse Positive ReactionsBiopsySputumPhotographyPoint-of-Care SystemsEnzyme-Linked Immunosorbent AssayPhysical ExaminationFecesMultidetector Computed TomographyInfant, NewbornMass ScreeningSoftwareOphthalmoscopyNucleic Acid Amplification TechniquesUrineChromatography, High Pressure LiquidPositron-Emission TomographyUltrasonographyDatabases, FactualCross-Sectional StudiesFeasibility StudiesUrinalysisInformation Storage and RetrievalMEDLINEParasitologyImmunoenzyme TechniquesTreatment OutcomeX-Ray Intensifying ScreensRadiography, ThoracicFalse Negative ReactionsStatistics, NonparametricSeverity of Illness IndexPattern Recognition, AutomatedArea Under CurvePhantoms, ImagingColonography, Computed TomographicUnited StatesSingle-Blind MethodMycobacterium tuberculosisRadiopharmaceuticalsResearch DesignDNA, BacterialGadolinium DTPACohort StudiesFractional Flow Reserve, MyocardialMethodsGas Chromatography-Mass SpectrometryModels, StatisticalWorld Health OrganizationBiological AssaySequence Analysis, DNABiological MarkersStatistics as TopicSerologic TestsCardiac-Gated Imaging TechniquesAnthropometryMass Spectrometry