Pulsatile FlowBlood Flow VelocityModels, CardiovascularReplica TechniquesRegional Blood FlowRheologyHemorheologyEar, MiddleStress, MechanicalModels, AnatomicShear StrengthEquipment DesignUltrasonography, Doppler, ColorPericytesFlow CytometryVeinsPhantoms, ImagingHeart-Assist DevicesPulmonary CirculationEchocardiography, Doppler, ColorBlood PressureCoronary CirculationHemodynamicsPressureMiddle Cerebral ArteryBlood Vessel ProsthesisIntracranial AneurysmBlood VesselsFemoral ArteryCarotid ArteriesPerfusionHeart Valve ProsthesisArteriesMaterials TestingEndothelium, VascularTime FactorsInfarction, Middle Cerebral ArteryComputer SimulationProsthesis DesignNitric Oxide Synthase Type IIIReproducibility of ResultsBiomechanical PhenomenaCoronary VesselsAortaDogsSwineGene FlowCerebrovascular CirculationModels, BiologicalCells, CulturedCattleCerebral Arteries