Brachial plexus sonoanatomy explained by multiplanar reformatting of digitized anatomy

Multiplanar reformatting of digitized anatomy has made feasible the reconstructions of non-standard anatomical planes. The various (oblique) cross-sections explain the difference between hypo-echogenic vs hyper-echogenic structures of the BP-nerves, the position of the needle tip in the various BP-approaches, the topography of important blood vessels displayed in US images and illustrates why the US-probe needs a continuous change in angulation.