Pulsatile FlowBlood Flow VelocityModels, CardiovascularGraft SurvivalReplica TechniquesRegional Blood FlowRheologyGraft Occlusion, VascularHemorheologyBlood Vessel ProsthesisStress, MechanicalModels, AnatomicVeinsShear StrengthEquipment DesignUltrasonography, Doppler, ColorPericytesFlow CytometryFemoral ArteryHeart-Assist DevicesPhantoms, ImagingPulmonary CirculationEchocardiography, Doppler, ColorTime FactorsCoronary CirculationHemodynamicsBlood PressureProsthesis DesignPressureBlood VesselsCarotid ArteriesArteriesPolytetrafluoroethylenePerfusionMaterials TestingHeart Valve ProsthesisEndothelium, VascularIntracranial AneurysmAortaSwineDogsCoronary VesselsComputer SimulationBiomechanical PhenomenaVascular PatencyNitric Oxide Synthase Type IIIReproducibility of ResultsSaphenous VeinPolyethylene TerephthalatesKidney TransplantationGene FlowBlood Vessel Prosthesis ImplantationCells, CulturedTreatment OutcomePrimary Graft DysfunctionModels, BiologicalLiver TransplantationCattleTransplantsCoronary Artery BypassAnastomosis, SurgicalArteriovenous Shunt, SurgicalReoperationPostoperative ComplicationsJugular VeinsGraft vs Host DiseaseRetrospective Studies