Implementation issues in ultrasonic flow imaging.
This article addresses several implementation issues in ultrasonic flow imaging. We discuss frequency-dependent scattering and attenuation, use of interpolation for computation intensive methods and implications of the use of chirps to increase bandwidth. We also discuss wall filtering issues; our observations show that the butterfly search estimator may be capable of detecting flow in the vicinity of strong stationary scatterers (clutter) without additional processing such as wall-filtering. Illustrative examples are given for simulated and experimental data.
Riverside Research Institute, New York, NY, USA.
S Kaisar
SK
Alam
Kevin J
KJ
Parker
D000465:Algorithms; D001775:Blood Circulation; D001783:Blood Flow Velocity; D006801:Humans; D012016:Reference Values; D018615:Ultrasonography, Doppler, Color / Q000592:standards*