Graft Occlusion, VascularVascular PatencyPolytetrafluoroethyleneSaphenous VeinBlood Vessel ProsthesisArterial Occlusive DiseasesVeinsPopliteal ArteryFemoral ArteryGraft SurvivalIschemiaBlood Vessel Prosthesis ImplantationAmputationVascular GraftingVascular Surgical ProceduresLegTreatment OutcomeTibial ArteriesPolyethylene TerephthalatesCoronary Artery BypassReoperationLimb SalvagePopliteal VeinFemoral VeinTime FactorsInguinal CanalPostoperative ComplicationsLower ExtremityArteriovenous Shunt, SurgicalFallopian Tube Patency TestsFollow-Up StudiesThrombosisUltrasonography, Doppler, DuplexStentsPeripheral Vascular DiseasesRetrospective StudiesIntermittent ClaudicationCoronary OcclusionCoronary-Subclavian Steal SyndromeBalloon OcclusionRetinal Vein OcclusionRetinal Artery OcclusionConstriction, PathologicProspective StudiesCoronary AngiographyAspirinFibrinolytic AgentsTomography, X-Ray ComputedAnastomosis, SurgicalIliac ArteryAngioplasty, BalloonMarylandArteriesDental OcclusionBostonRisk FactorsAngiographyAnticoagulantsInternational Normalized RatioRisk AssessmentInfarction, Middle Cerebral ArteryProsthesis DesignAlloysTexasBrain IschemiaMesenteric Vascular OcclusionLife TablesCollateral CirculationRadial ArteryHysterosalpingographyThrombectomyThrombolytic TherapyRenal DialysisDogsCarotid Artery, InternalConstrictionCerebral AngiographyAngioplastyEmbolization, TherapeuticIliac VeinJugular VeinsAorta, AbdominalBrachiocephalic VeinsAneurysmTissue and Organ HarvestingMyocardial InfarctionCerebral ArteriesCatheters, IndwellingKidney TransplantationCoated Materials, BiocompatibleRecurrenceDental Occlusion, CentricTherapeutic OcclusionAngiography, Digital SubtractionAxillary ArteryRegional Blood FlowCoronary VesselsCerebral InfarctionBlood Flow VelocityDisease Models, Animal