16 – Colour Doppler

Colour Doppler can be used to visualise the proxy marker – the axillary artery – and blood vessels that you do not want to perforate with the needle

It is also possible to use colour Doppler to visualise the injection of local anaesthetic

In that case it is an advantage to lower the PRF (Pulse Repetition Frequency) in order to enhance the visibility of the injectate

Click on the VIDEO CLIP button to view the video