Carotid Artery, InternalAneurysm, FalseCarotid Artery DiseasesCarotid Artery, ExternalBasilar ArteryCarotid Artery, Internal, DissectionCarotid StenosisAneurysmVagus Nerve InjuriesCranial Nerve DiseasesGlossopharyngeal Nerve InjuriesCerebral AngiographyAngiography, Digital SubtractionFemoral ArteryCarotid ArteriesCatheterization, PeripheralUltrasonography, Doppler, DuplexEmbolization, TherapeuticTomography, X-Ray ComputedCerebral InfarctionCarotid Artery, CommonBlood Flow VelocityStrokeIschemic Attack, TransientCarotid Artery ThrombosisEndarterectomy, CarotidVertebral ArteryArteriesCerebral ArteriesArterial Occlusive DiseasesAngiographyMagnetic Resonance AngiographyIntracranial AneurysmVertebrobasilar InsufficiencyCerebrovascular CirculationCircle of WillisStentsCerebral RevascularizationCerebrovascular DisordersCarotid Artery InjuriesIntracranial ArteriosclerosisUltrasonography, Doppler, TranscranialEndarterectomyIntracranial Embolism and ThrombosisCavernous SinusAneurysm, RupturedTreatment OutcomeTemporal ArteriesUltrasonography, Doppler, ColorMiddle Cerebral ArteryBrain IschemiaOphthalmic ArteryUltrasonographySubarachnoid HemorrhageCarotid-Cavernous Sinus FistulaCollateral CirculationPulmonary ArteryInjections, Intra-ArterialAngioplasty, BalloonTunica IntimaIntracranial EmbolismRenal ArteryIatrogenic DiseaseRetrospective StudiesAngioplastyArteriosclerosisFollow-Up StudiesSubclavian ArteryTunica MediaConstriction, PathologicFibromuscular DysplasiaTime FactorsMoyamoya DiseaseCatheterizationMesenteric ArteriesCerebral Arterial DiseasesMagnetic Resonance ImagingEpistaxisAmaurosis FugaxPetrous BoneProspective StudiesIliac ArteryBlood Vessel Prosthesis ImplantationAneurysm, InfectedRegional Blood FlowBalloon OcclusionCarotid BodyPostoperative ComplicationsVascular Surgical ProceduresArteriovenous FistulaAnterior Cerebral ArteryAneurysm, DissectingRisk FactorsHemostaticsNeck InjuriesRadial ArteryHorner SyndromeVasospasm, IntracranialUltrasonography, DopplerVasodilation