Imaging, Three-DimensionalPhantoms, ImagingAlgorithmsRadiographic Image EnhancementImage Processing, Computer-AssistedRadiographic Image Interpretation, Computer-AssistedCone-Beam Computed TomographyFiducial MarkersArtifactsRadiotherapy, Computer-AssistedTomography Scanners, X-Ray ComputedX-RaysReproducibility of ResultsTomography, X-Ray ComputedTomographyRadiation DosageSensitivity and SpecificityImage EnhancementEquipment DesignScattering, RadiationCryoelectron MicroscopyMammographyFourier AnalysisTomography, Emission-Computed, Single-PhotonComputer SimulationImage Interpretation, Computer-AssistedNeural PathwaysWheat Germ Agglutinin-Horseradish Peroxidase ConjugateAxonsNeuronsSuperior ColliculiEfferent PathwaysAfferent PathwaysProjectionVisual PathwaysThalamusNeuronal Tract-TracersHorseradish PeroxidaseSubtraction TechniqueStilbamidinesPattern Recognition, AutomatedBrainBrain MappingOlfactory PathwaysThalamic NucleiCerebral CortexCatsAxonal TransportTime FactorsNeurons, AfferentRetinaDiagnostic ImagingInterneuronsBiotinGeniculate BodiesDextransSpinal CordAuditory PathwaysMicroscopy, ElectronElectric StimulationContrast MediaObserver VariationSynaptic TransmissionVisual CortexPonsForecastingRats, Sprague-DawleyFluorescent DyesBrain StemFunctional LateralitySoftwareData CompressionVesicular Glutamate Transport Protein 2Corpus StriatumNerve NetAction PotentialsModels, AnatomicStaining and LabelingImmunohistochemistryMedulla OblongataModels, BiologicalMotor NeuronsDendritesSignal Processing, Computer-AssistedMicroscopy, ConfocalX-Ray Intensifying ScreensModels, TheoreticalCorpus CallosumNerve FibersTomography, OpticalModels, NeurologicalPyramidal TractsAmygdalaModels, StatisticalPhotic StimulationInferior ColliculiSynapsesTrigeminal Nucleus, SpinalTegmentum MesencephaliNeural Inhibition