ArtifactsPhantoms, ImagingImage EnhancementAlgorithmsImage Processing, Computer-AssistedReproducibility of ResultsImage Interpretation, Computer-AssistedRadiographic Image EnhancementSensitivity and SpecificityImaging, Three-DimensionalSignal Processing, Computer-AssistedMagnetic Resonance ImagingSignal-To-Noise RatioEcho-Planar ImagingCone-Beam Computed TomographySubtraction TechniqueMotionTomography, X-Ray ComputedArchaeologyRadiographic Image Interpretation, Computer-AssistedMetalsEquipment DesignBrainComputer SimulationMovementContrast MediaFourier AnalysisDiagnostic ErrorsCardiac-Gated Imaging TechniquesMagnetic Resonance AngiographyTime FactorsRespiratory-Gated Imaging TechniquesHistory, AncientWavelet AnalysisRadiography, AbdominalEquipment Failure AnalysisAmplifiers, ElectronicTomography, Emission-Computed, Single-PhotonProstheses and ImplantsModels, TheoreticalElectroencephalographyFalse Positive ReactionsSurgical InstrumentsWhole Body ImagingFixativesQuality ControlUltrasonographyModels, StatisticalSoftwareData Interpretation, StatisticalMultidetector Computed Tomography