Angiography, Digital SubtractionFluorescein AngiographyMagnetic Resonance ImagingSubtraction TechniqueMagnetic Resonance AngiographyMagnetic Resonance SpectroscopyCerebral AngiographyIntracranial AneurysmContrast MediaImaging, Three-DimensionalRadiographic Image EnhancementIntracranial Arteriovenous MalformationsSensitivity and SpecificityImage Processing, Computer-AssistedTomography, X-Ray ComputedEmbolization, TherapeuticCarotid Artery, InternalGadolinium DTPAMagnetic Resonance Imaging, CineReproducibility of ResultsAngiographySalivary Gland CalculiCentral Nervous System Vascular MalformationsAneurysm, RupturedCarotid StenosisArterial Occlusive DiseasesCerebral VeinsGadoliniumImage EnhancementObserver VariationBrainRadiography, Dental, DigitalSubarachnoid HemorrhageArtifactsUltrasonography, Doppler, ColorUltrasonography, Doppler, DuplexIohexolPredictive Value of TestsX-Ray Intensifying ScreensConstriction, PathologicTomography, Spiral ComputedArteriovenous MalformationsCerebral ArteriesAnterior Cerebral ArteryDiffusion Magnetic Resonance ImagingRadiographic Image Interpretation, Computer-AssistedIopamidolSialographyCerebrovascular CirculationCarotid Artery DiseasesImage Interpretation, Computer-AssistedMyelographyTibial ArteriesVertebrobasilar InsufficiencyCarotid-Cavernous Sinus FistulaBrain MappingPhantoms, ImagingProspective StudiesNeurosurgical ProceduresCerebrovascular DisordersRetrospective StudiesSurgical InstrumentsNuclear Magnetic Resonance, BiomolecularUltrasonography, Doppler, TranscranialOrganometallic CompoundsCranial SinusesTreatment OutcomeSalivary Gland DiseasesVasospasm, IntracranialTriiodobenzoic AcidsInjections, Intra-ArterialTime FactorsAlgorithmsBasilar ArteryRadiography, BitewingFeasibility StudiesAneurysmIothalamate MeglumineRadiography, InterventionalUltrasonographyCerebral RevascularizationVertebral ArteryCerebrospinal Fluid RhinorrheaSialadenitisSurface Plasmon ResonanceImmediate Dental Implant LoadingBlood Flow VelocityArteriovenous FistulaCarotid ArteriesIntracranial ArteriosclerosisFollow-Up StudiesBrain IschemiaRenal ArteryElectron Spin Resonance SpectroscopyCarotid Artery, ExternalCircle of WillisPreoperative CareEquipment DesignSeverity of Illness IndexMoyamoya Disease