Pulsated Doppler ultrasound

Colour duplex ultrasound scanning is currently the technique of choice in order to assess the venous system of the lower limb. This technique combines ultrasound imaging with pulsated Doppler ultrasound, and provides detailed anatomic information of the superficial, deep, and perforating venous systems. It can identify specific veins in which blood reflux occurs, or obstructions which may be contributing to venous hypertension. 

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