Basilar ArteryAneurysmIntracranial AneurysmArteriesAneurysm, InfectedCerebral AngiographyEmbolization, TherapeuticVertebrobasilar InsufficiencyAortic AneurysmVertebral ArteryCoronary AneurysmCerebral ArteriesIliac AneurysmSubarachnoid HemorrhageSplenic ArteryAneurysm, RupturedRenal ArteryTomography, X-Ray ComputedAneurysm, DissectingPulmonary ArteryAortic Aneurysm, ThoracicHeart AneurysmCarotid Artery, InternalCarotid ArteriesBlood Vessel Prosthesis ImplantationFemoral ArteryIliac ArteryAngiography, Digital SubtractionTreatment OutcomeCarotid Artery DiseasesAneurysm, FalseMesenteric ArteriesSubclavian ArteryVascular Surgical ProceduresAngiographyEndovascular ProceduresBlood Vessel ProsthesisCeliac ArteryStentsPopliteal ArteryMesenteric Artery, SuperiorHepatic ArteryBrain Stem InfarctionsVasospasm, IntracranialCoronary Artery BypassAortic RuptureAnterior Cerebral ArteryPosterior Cerebral ArteryAorta, AbdominalRadial ArteryArterial Occlusive DiseasesVasodilationCircle of WillisMagnetic Resonance AngiographyBronchial ArteriesMiddle Cerebral ArteryMammary ArteriesAortographyOphthalmic ArteryVasoconstrictionSurgical InstrumentsFollow-Up StudiesRetrospective StudiesMuscle, Smooth, VascularCarotid Artery, CommonBrachial ArteryTime FactorsCoronary VesselsCerebrovascular CirculationTemporal ArteriesPostoperative ComplicationsUlnar ArteryMucocutaneous Lymph Node SyndromeDogsNeurosurgical ProceduresVasodilator AgentsDilatation, PathologicVertebral Artery DissectionVascular PatencyCranial Fossa, PosteriorCoronary AngiographyMagnetic Resonance ImagingCarotid Artery, Internal, DissectionRenal Artery ObstructionAxillary ArteryMesenteric Artery, InferiorProsthesis DesignLigationCarotid Artery, ExternalSerotoninThoracic ArteriesAngioplastyRupture, SpontaneousIntracranial Embolism and ThrombosisEndothelium, VascularRabbitsCerebral RevascularizationUmbilical ArteriesVasoconstrictor AgentsConstriction, Pathologic