Imaging of Peripheral Nerves

Abstract

Peripheral neuropathy is defined as any disorder affecting the peripheral nerves. Clinical examination along with electrophysiological studies form the gold standard for diagnosing peripheral neuropathy. Imaging of peripheral nerves has come a long way, beginning from plain ultrasound (USG) in early days to highly sophisticated magnetic resonance (MR) neurography in the current era. Direct visualization of the nerve along with secondary changes in muscles are well visualized with nerve imaging. USG acts as a screening modality allowing for quick comparison with the opposite side. MR imaging is the more objective and definitive modality for evaluating peripheral neuropathy; however, is underutilized due to its high cost and lack of expertise.