Intracranial AneurysmEmbolization, TherapeuticAneurysmAneurysm, RupturedCerebral AngiographySubarachnoid HemorrhageCerebral ArteriesAneurysm, InfectedSurgical InstrumentsAngiography, Digital SubtractionAortic AneurysmTomography, X-Ray ComputedAortic Aneurysm, ThoracicEndovascular ProceduresHeart AneurysmTreatment OutcomePlatinumAneurysm, DissectingEnbucrilateNeurosurgical ProceduresIntracranial Arteriovenous MalformationsCerebral InfarctionCerebrovascular CirculationAngiographyBlood Vessel Prosthesis ImplantationAneurysm, FalseAnterior Cerebral ArteryIliac AneurysmCoronary AneurysmMiddle Cerebral ArteryCraniotomyBlood Vessel ProsthesisStentsVascular Surgical ProceduresCerebral VeinsPolyvinylsMicrosurgeryMagnetic Resonance AngiographyRupture, SpontaneousBalloon OcclusionCarotid Artery, InternalEmbolismCerebral HemorrhageRetrospective StudiesCircle of WillisRetreatmentImaging, Three-DimensionalFollow-Up StudiesGlasgow Outcome ScaleUterine Artery EmbolizationPolyvinyl AlcoholCerebral PalsyAortic RuptureEquipment DesignPostoperative ComplicationsVertebral ArteryRadiography, InterventionalBrainArteriovenous FistulaAorta, AbdominalSplenic ArteryModels, CardiovascularArteriovenous MalformationsIntracranial ThrombosisMagnetic Resonance ImagingRecurrenceCoated Materials, BiocompatibleBrain IschemiaCarotid Artery DiseasesGelatin Sponge, AbsorbableBasilar ArteryProstheses and ImplantsLigationIntracranial EmbolismTime FactorsCatheterizationAortographyCerebral RevascularizationBlood Flow VelocityVasospasm, IntracranialInfarction, Middle Cerebral ArteryFatal OutcomeCyanoacrylatesIntracranial Embolism and ThrombosisMalaria, CerebralCentral Nervous System Vascular MalformationsPosterior Cerebral ArteryOphthalmic ArteryCranial Nerve DiseasesNeurosurgeryDisease Models, AnimalEquipment Failure AnalysisVideodisc RecordingCarotid Artery, CommonElastic TissueForeign-Body MigrationHepatic ArteryNeurologic ExaminationFeasibility StudiesModels, Anatomic