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Fast ultrasound simulation method for evaluation of velocity estimators

Both mean velocity and spectral Doppler techniques are prone to estimation errors and variance, and new velocity estimation techniques need to be validated extensively before they can be considered for clinical use. Quantitative validation is commonly performed using simulations, with the advantage that the underlying velocity field is known. However, simulations typically produce only realizations of the signal, so that multiple simulations or long temporal windows are necessary to estimate the statistical properties of the estimators.