Velocity fluctuation reduction in vector Doppler ultrasound using a hybrid single/dual-beam algorithm.

IEEE Trans Ultrason Ferroelectr Freq Control 2003 Jan;50(1):89-93

In order to reduce the fluctuations in the velocity magnitude estimate, we propose a modification to the standard algorithm for reconstructing the (two component) vector velocity from the measured Doppler shifts in two directions. This uses the standard dual-beam algorithm, combined with temporal smoothing, to find only the velocity angle, then uses the single-beam algorithm to estimate the velocity magnitude. We present initial data showing the significant reduction in velocity estimate fluctuation that this hybrid method achieves compared to the standard algorithm.

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http://dx.doi.org/10.1109/tuffc.2003.1176529DOI Listing
January 2003
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