Key result
A theoretical model for pulsed wave doppler signals establishes a minimum detectable blood velocity in small vessels, typically 6.4 mm/s for 6 MHz doppler, due to clutter from vibrating muscles.
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Caution advised for low-velocity Doppler in small vessels; leaves open whether clutter mitigation can extend detection thresholds.
This theoretical model establishes a minimum detectable blood velocity of 6.4 mm/s for 6 MHz doppler due to clutter signals from vibrating muscles.
Heimdal et al. (1997) studied Low velocity blood flow. Pulsed wave doppler was evaluated on Theoretical minimum for detectable blood velocity. A theoretical model for pulsed wave doppler signals establishes a minimum detectable blood velocity in small vessels, typically 6.4 mm/s for 6 MHz doppler, due to clutter from vibrating muscles.
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