Three-tesla magnetic resonance neurography of the brachial plexus in cervical radiculopathy

Muscle Nerve. 2015 Sep;52(3):392-6. doi: 10.1002/mus.24560. Epub 2015 Jun 18.

Abstract

Introduction: There have been no reports of the use of 3-Tesla magnetic resonance neurography (3T MRN) to characterize cervical radiculopathy. In particular, there are no reports of MRN of brachial plexus involvement in patients with cervical radiculopathy.

Methods: We reviewed retrospectively 12 consecutive patients with cervical radiculopathy who underwent 3T MRN.

Results: The median age was 54.5 years. Eleven of 12 patients were men. The distribution of nerve-root signal abnormality was correlated with intervertebral foraminal stenosis and the presence of muscles that exhibited weakness and/or signs of denervation on electromyography. MRN abnormalities were found to extend into the distal part of the brachial plexus in 10 patients.

Conclusion: This study demonstrates that MRN is potentially useful for diagnosis in patients with suspected cervical radiculopathy. Moreover, the finding of brachial plexus involvement on MRN may indicate a possible pathophysiological relationship between cervical radiculopathy and brachial plexopathy.

Keywords: brachial plexopathy; cervical disk herniation; cervical radiculopathy; magnetic resonance neurography; neuralgic amyotrophy.

MeSH terms

  • Adult
  • Aged, 80 and over
  • Brachial Plexus / pathology*
  • Brachial Plexus Neuropathies / diagnosis*
  • Cervical Vertebrae
  • Cohort Studies
  • Electromyography
  • Female
  • Humans
  • Magnetic Resonance Imaging / methods
  • Male
  • Middle Aged
  • Radiculopathy / diagnosis*
  • Retrospective Studies