Tomography, X-Ray ComputedTomography, Spiral ComputedSpiral GanglionTomographyPositron-Emission TomographyTomography, Optical CoherenceSpiral Ligament of CochleaTomography, Emission-ComputedMultidetector Computed TomographyTomography, OpticalTomography, Emission-Computed, Single-PhotonCone-Beam Computed TomographyElectron Microscope TomographyTomography, X-RayImaging, Three-DimensionalTomography Scanners, X-Ray ComputedCochleaFluorodeoxyglucose F18Spiral LaminaImage Processing, Computer-AssistedSensitivity and SpecificityReproducibility of ResultsPhantoms, ImagingMagnetic Resonance ImagingRadiographic Image Interpretation, Computer-AssistedBrainSpiral Cone-Beam Computed TomographyHippocampusPredictive Value of TestsRadiographic Image EnhancementNeuronsContrast MediaTime FactorsImage EnhancementX-Ray MicrotomographyStria VascularisArtifactsFluorine RadioisotopesMultimodal ImagingAlgorithmsOrgan Culture TechniquesRats, Sprague-DawleyCalcinosisCoronary AngiographyDiagnostic ImagingEquipment DesignOrgan of CortiRetrospective StudiesRadiography, ThoracicProspective StudiesElectric StimulationAction PotentialsCochlear NerveObserver VariationFour-Dimensional Computed TomographyCochlear DuctTemporal BoneExcitatory Postsynaptic PotentialsSynaptic TransmissionCardiac-Gated Imaging TechniquesRadiation DosageEvoked Potentials, Auditory, Brain StemTreatment OutcomeRadiography, AbdominalDeafnessCoronary Artery DiseasePatch-Clamp TechniquesUterine ArteryEar, InnerElectrophysiologyNerve FibersSynapsesAnimals, NewbornAngiographyTrophoblastsCountercurrent DistributionCarbon RadioisotopesHair Cells, AuditoryCerebral CortexModels, CardiovascularMicrotomyMacula LuteaIohexolGuinea PigsAnatomy, Cross-SectionalComputer SimulationFollow-Up StudiesCoronary StenosisFeasibility StudiesRats, WistarOxygen RadioisotopesPyramidal CellsDiagnostic Techniques, OphthalmologicalPresbycusisCerebrovascular CirculationLabyrinth Supporting CellsHeartMembrane PotentialsEquipment Failure AnalysisPulmonary Embolism