title: Physiological interpretation of Doppler-shift waveforms--I. Theoretical considerations.
mesh_terms: D001157:Arterial Occlusive Diseases / Q000503:physiopathology; D001158:Arteries / Q000502:physiology; D001783:Blood Flow Velocity; D004301:Doppler Effect; D004548:Elasticity; D006801:Humans; D008954:Models, Biological; D013977:Tibia / Q000098:blood supply; D014463:Ultrasonography; D014661:Vasoconstriction; D014664:Vasodilation