Plexus Pathology

Plexus Pathology

Locating pathology in either the brachial or lumbar plexus can be difficult; the nerves are small, have tortuous routes, extend far into the limbs, and run parallel to veins and arteries. In the case of the brachial plexus, there is also respiratory motion and ventral location to consider. An imaging approach appropriate for these pathologies would include:

High in-plane resolution to resolve individual nerves

Thin slices to visualize the origin and course or nerves

Suppression of blood signal from nearby vessels for better discernment and less flow artifact

Both fat suppressed AND non-fat suppressed sequences

Fat suppressed post contrast imaging

Large FOV to include any innervated muscles to identify atrophy

Long slice coverage to image distal muscles to identify atrophy

Anterior coils (Brachial Plexus)

Motion reduction techniques