title: Some aspects of the relationship between instantaneous volumetric blood flow and continuous wave Doppler ultrasound recordings--I. The effect of ultrasonic beam width on the output of maximum, mean and RMS frequency processors.
mesh_terms: D001783:Blood Flow Velocity; D008433:Mathematics; D008954:Models, Biological; D012212:Rheology; D014465:Ultrasonics / Q000295:instrumentation*