Femoral ArteryArteriesIliac ArteryAneurysmArteriovenous MalformationsLegLower ExtremityAngiographyArterial Occlusive DiseasesPulmonary ArteryCarotid ArteriesRenal ArteryCerebral ArteriesIschemiaMesenteric ArteriesBasilar ArteryTomography, X-Ray ComputedCongenital AbnormalitiesRadial ArteryVertebral ArteryCoronary Artery BypassMammary ArteriesSubclavian ArteryBrachial ArteryCarotid Artery, InternalCarotid Artery DiseasesPopliteal ArteryCarotid Artery, CommonSplenic ArteryHepatic ArteryCoronary VesselsRegional Blood FlowMuscle, Smooth, VascularCeliac ArteryVasodilationOphthalmic ArteryMesenteric Artery, SuperiorVasoconstrictionAneurysm, FalseAngioplasty, BalloonCatheterization, PeripheralVascular PatencyConstriction, PathologicUmbilical ArteriesMiddle Cerebral ArteryRenal Artery ObstructionThoracic ArteriesLigationStentsTemporal ArteriesBronchial ArteriesEndothelium, VascularHindlimbTreatment OutcomeTime FactorsUlnar ArteryHemostatic TechniquesVasodilator AgentsCoronary AngiographyAlloysUterine ArteryBlood PressureCarotid Artery, ExternalCarotid Artery InjuriesAxillary ArteryDogsBlood Vessel Prosthesis ImplantationCoronary DiseaseUltrasonography, Doppler, DuplexFemoral VeinBlood Vessel ProsthesisArteriosclerosisVasoconstrictor AgentsAngioplastyCatheterizationInjections, Intra-ArterialRabbitsHemodynamicsPeripheral Arterial DiseaseInfarction, Middle Cerebral ArteryMagnetic Resonance AngiographyUltrasonography, DopplerEndarterectomyRetinal Artery OcclusionFollow-Up StudiesCarotid Artery ThrombosisDisease Models, AnimalCardiac CatheterizationMeningeal ArteriesIntermittent ClaudicationNitric OxideAorta, AbdominalVascular Surgical ProceduresPolytetrafluoroethyleneSaphenous VeinProspective StudiesMuscle ContractionRetrospective StudiesAcetylcholineCarotid Stenosis