MRI versus ultrasound for diagnosis of immune-mediate neuropathies

Takeaway

  • Ultrasound is a more sensitive imaging technique to differentiate the immune-mediated neuropathies chronic inflammatory demyelinating polyneuropathy (CIDP) and multifocal motor neuropathy (MMN) from segmental spinal muscular atrophy (sSMA).

Why this matters

    It may be appropriate to revise the current diagnostic guidelines for CIDP and MMN, which include MRI methods such as hypertrophy and increased brachial plexus signal intensity, to incorporate the more sensitive ultrasound techniques.