Magnetic Resonance Neurography for Evaluation of Peripheral Nerves

Ku, V.; Cox, C.; Mikeska, A.; MacKay, B.

Journal of Brachial Plexus and Peripheral Nerve Injury 16(1): E17-E23

2021


ISSN/ISBN: 1749-7221
PMID: 34007307
DOI: 10.1055/s-0041-1729176
Accession: 072083291

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Abstract
Peripheral nerve injuries (PNIs) continue to present both diagnostic and treatment challenges. While nerve transections are typically a straightforward diagnosis, other types of PNIs, such as chronic or traumatic nerve compression, may be more difficult to evaluate due to their varied presentation and limitations of current diagnostic tools. As a result, diagnosis may be delayed, and these patients may go on to develop progressive symptoms, impeding normal activity. In the past, PNIs were diagnosed by history and clinical examination alone or techniques that raised concerns regarding accuracy, invasiveness, or operator dependency. Magnetic resonance neurography (MRN) has been increasingly utilized in clinical settings due to its ability to visualize complex nerve structures along their entire pathway and distinguish nerves from surrounding vasculature and tissue in a noninvasive manner. In this review, we discuss the clinical applications of MRN in the diagnosis, as well as pre- and postsurgical assessments of patients with peripheral neuropathies.