Cerebrovascular CirculationArterial Occlusive DiseasesIliac ArteryFemoral ArteryVascular PatencyAorta, AbdominalPeripheral Vascular DiseasesAortic DiseasesPopliteal ArteryConstriction, PathologicOcclusive DressingsIntermittent ClaudicationIschemiaLegAngioplasty, BalloonVascular Surgical ProceduresTibial ArteriesLimb SalvageAngiographyEndarterectomyIntracranial Arterial DiseasesBlood CirculationCollateral CirculationStentsPolytetrafluoroethyleneBlood Vessel Prosthesis ImplantationBlood Vessel ProsthesisTreatment OutcomePolyethylene TerephthalatesUltrasonography, Doppler, DuplexCerebral Arterial DiseasesPeripheral Arterial DiseaseCarotid Artery, InternalAngioplastyCarotid StenosisAcetazolamideCarotid Artery DiseasesAortic Aneurysm, AbdominalAmputationAnkleLife TablesLower ExtremityAngiography, Digital SubtractionTime FactorsMesenteric Vascular OcclusionAnastomosis, SurgicalAxillary ArteryArteriosclerosisFollow-Up StudiesInguinal CanalRetrospective StudiesCerebrovascular DisordersCeliac ArteryThromboangiitis ObliteransBrachiocephalic TrunkPostoperative ComplicationsSubclavian ArteryCerebral AngiographyMagnetic Resonance AngiographyVertebrobasilar InsufficiencyAtherectomyIofetamineGraft Occlusion, VascularVascular GraftingExtracorporeal CirculationMoyamoya DiseaseVeinsRisk FactorsRetinal Artery OcclusionAnkle Brachial IndexPulmonary CirculationIschemic Attack, TransientProspective StudiesBlood Flow VelocityGangreneSeverity of Illness IndexCerebral ArteriesIntracranial ArteriosclerosisHerniaRegional Blood FlowPlethysmography, ImpedanceVertebral ArteryRecurrenceAmaurosis FugaxIliac VeinAortography