Arteriovenous MalformationsIntracranial AneurysmIntracranial Arteriovenous MalformationsEmbolization, TherapeuticCerebral AngiographyAneurysmAneurysm, RupturedAngiography, Digital SubtractionTelangiectasia, Hereditary HemorrhagicSubarachnoid HemorrhageEnbucrilateMagnetic Resonance AngiographyAneurysm, InfectedTomography, X-Ray ComputedCerebral VeinsRupture, SpontaneousPolyvinylsNeurosurgical ProceduresAortic AneurysmCerebral ArteriesSurgical InstrumentsBucrylateArteriovenous FistulaRadiosurgeryCerebral HemorrhageAngiographyTreatment OutcomeMicrosurgeryIntracranial HemorrhagesHeart AneurysmAortic Aneurysm, ThoracicImaging, Three-DimensionalVascular MalformationsAneurysm, DissectingEndovascular ProceduresCarotid Artery, InternalArnold-Chiari MalformationRetrospective StudiesMechanical ThrombolysisFollow-Up StudiesPulmonary VeinsDura MaterCraniotomyCircle of WillisIliac AneurysmCentral Nervous System Vascular MalformationsPostoperative ComplicationsVascular Surgical ProceduresRetreatmentMagnetic Resonance ImagingPosterior Cerebral ArteryCoronary AneurysmBlood Vessel ProsthesisPlatinumStentsGlasgow Outcome ScaleTissue AdhesivesBlood Vessel Prosthesis ImplantationAnterior Cerebral ArteryVertebral ArteryPulmonary ArteryBalloon OcclusionBasilar ArteryKlippel-Trenaunay-Weber SyndromeAortic RuptureAneurysm, FalseCerebrovascular CirculationEquipment DesignIncidental FindingsHemangioma, Cavernous, Central Nervous SystemIntracranial ThrombosisRecurrenceRisk FactorsNeurologic ExaminationCongenital AbnormalitiesActivin Receptors, Type IICranial SinusesStereotaxic TechniquesCavernous SinusCyanoacrylatesOphthalmic ArteryIntraoperative ComplicationsEpistaxisProspective StudiesSensitivity and SpecificityAorta, AbdominalModels, CardiovascularIntracranial EmbolismCarotid Artery, ExternalCerebral RevascularizationRadiography, InterventionalEquipment Failure AnalysisContrast MediaSclerotherapyAbnormalities, MultipleAortographyTime FactorsVein of Galen MalformationsCarotid Artery DiseasesNervous System Malformations