Statistical analysis and time correlation processes applied to velocity measurement (blood flow)

摘要: A time description of pulsed Doppler signals backscattered by blood flow describes the pulse-Doppler effect on successive echoes from a cloud scatterers as progressive translation in due to displacement along ultrasound beam axis between two transmissions. However, statistical analysis treatment provides better this estimation process. In general case where velocity is neither axial nor uniform, dispersion characteristics distribution must be introduced. given averages naturally performed process such cases. As main result, local variance also available. This has been estimated first with simulated for validation theoretical description, then vivo data pathological >