Artifactual mirrored subclavian artery on ultrasound imaging for supraclavicular block.

摘要

I read with interest the letter written by Drs. Saranteas and Karabinis, who highlighted the important artifactual subclavian artery seen on supraclavicular ultrasound examination using color or power Doppler. I believe, however, that there is an alternative interpretation for the formation of this artifact. The image shown is an example of mirror artifact rather than a reverberation artifact, with the reflecting "mirror" surface being the pleura.