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| Ultrasonography, Doppler, Duplex Doppler Ultrasonography, Duplex | Ultrasonography, Duplex Doppler | Doppler Duplex Ultrasonography | Duplex Doppler Ultrasonography | Duplex Ultrasonography, Doppler | Ultrasonography, Doppler Duplex Ultrasonography applying the Doppler effect combined with real-time imaging. The real-time image is created by rapid movement of the ultrasound beam. A powerful advantage of this technique is the ability to estimate the velocity of flow from the Doppler shift frequency. |