Key result
A theoretical model of the CW Doppler ultrasonic flowmeter demonstrates that measurement of blood flow velocity corresponds to estimating the average frequency of the Doppler power spectrum.
Design
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Theoretical model supports frequency estimation for CW Doppler velocity; leaves open in vivo validation before clinical adoption.
Provides a detailed theoretical understanding of the CW Doppler ultrasonic flowmeter by modeling back-scattered ultrasound as a Gaussian random process.
Brody et al. (1974) studied this question. Theoretical model of CW Doppler Ultrasonic Flowmeter was evaluated on Autocovariance function and power spectral density function. A theoretical model of the CW Doppler ultrasonic flowmeter demonstrates that measurement of blood flow velocity corresponds to estimating the average frequency of the Doppler power spectrum.
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