Pulmonary Diffusing CapacityArterial Occlusive DiseasesDiffusionRespiratory Function TestsIliac ArteryMaximal Expiratory Flow RateFemoral ArteryTotal Lung CapacityCarbon MonoxideVascular PatencyLung Volume MeasurementsAlveolitis, Extrinsic AllergicAorta, AbdominalPeripheral Vascular DiseasesPulmonary EmphysemaAortic DiseasesVital CapacityPopliteal ArteryLungOcclusive DressingsConstriction, PathologicIntermittent ClaudicationDiffusion Magnetic Resonance ImagingLung Diseases, InterstitialIschemiaForced Expiratory VolumeLegAngioplasty, BalloonVascular Surgical ProceduresTibial ArteriesLimb SalvagePulmonary FibrosisAngiographyExercise ToleranceLung DiseasesEndarterectomyIntracranial Arterial DiseasesTomography, X-Ray ComputedDiffusion Tensor ImagingScleroderma, SystemicPulmonary AlveoliSpirometryOxygen ConsumptionStentsPolytetrafluoroethyleneBlood Vessel Prosthesis ImplantationExercise TestBlood Vessel ProsthesisHypertension, PulmonaryTreatment OutcomePolyethylene TerephthalatesPeripheral Arterial DiseaseUltrasonography, Doppler, DuplexCerebral Arterial DiseasesAngioplastyAcetazolamideCarotid StenosisCarotid Artery, InternalAortic Aneurysm, AbdominalCarotid Artery DiseasesTime FactorsAmputationAnkleLife TablesLower ExtremityFollow-Up StudiesAxillary ArteryMesenteric Vascular OcclusionRetrospective StudiesArteriosclerosisInguinal CanalAnastomosis, SurgicalAngiography, Digital SubtractionCerebrovascular DisordersThromboangiitis ObliteransBrachiocephalic TrunkCeliac ArteryPostoperative ComplicationsMagnetic Resonance AngiographySubclavian ArteryAtherectomyCollateral CirculationIofetamineGraft Occlusion, VascularCerebral AngiographyVascular GraftingFacilitated DiffusionVertebrobasilar InsufficiencyRisk FactorsProspective StudiesCerebrovascular CirculationAnkle Brachial IndexMoyamoya DiseaseAnisotropyIschemic Attack, TransientGangreneRetinal Artery OcclusionSeverity of Illness IndexHerniaVeins