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- W1905498600 abstract "A time description of pulsed Doppler signals backscattered by blood flow describes the pulse-Doppler effect on the successive echoes from a cloud of scatterers as a progressive translation in time due to the displacement of the scatterers along the ultrasound beam axis between two transmissions. However, a statistical analysis of the treatment provides a better description of this estimation process. In the general case where the velocity is neither axial nor uniform, the dispersion characteristics of the velocity distribution must be introduced. A description is given of the statistical averages naturally performed by the process in such cases. As a main result, the estimation of the local variance of the flow is also available. This variance has been estimated first with simulated signals for a validation of the theoretical description, then with in vivo data from pathological cases.< <ETX xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>></ETX>" @default.
- W1905498600 created "2016-06-24" @default.
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- W1905498600 date "2003-01-13" @default.
- W1905498600 modified "2023-10-01" @default.
- W1905498600 title "Statistical analysis and time correlation processes applied to velocity measurement (blood flow)" @default.
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- W1905498600 doi "https://doi.org/10.1109/ultsym.1989.67116" @default.
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