MR neurography for the evaluation of CIDP

Tomomasa Ishikawa, Kunihiko Asakura, Yasuaki Mizutani, Akihiro Ueda, Ken Ichiro Murate, Chika Hikichi, Sayuri Shima, Madoka Kizawa, Masako Komori, Kazuhiro Murayama, Hiroshi Toyama, Shinji Ito, Tatsuro Mutoh

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


Introduction: To visualize peripheral nerves in patients with chronic inflammatory demyelinating polyneuropathy (CIDP), we used MR imaging. We also quantified the volumes of the brachial and lumbar plexus and their nerve roots. Methods: Thirteen patients with CIDP and 12 healthy volunteers were enrolled. Whole-body MR neurography based on diffusion-weighted whole-body imaging with background body signal suppression (DWIBS) was performed. Peripheral nerve volumes were calculated from serial axial MR images. Results: The peripheral nervous system was visualized with 3-dimensional reconstruction. Volumes ranged from 8.7 to 49.5 cm3/m2 in the brachial plexus and nerve roots and from 10.2 to 53.5 cm3/m2 in the lumbar plexus and nerve roots. Patients with CIDP had significantly larger volumes than controls (P < 0.05), and volume was positively correlated with disease duration. Conclusions: MR neurography and the measurement of peripheral nerve volume are useful for diagnosing and assessing CIDP. Muscle Nerve 55: 483–489, 2017.

Original languageEnglish
Pages (from-to)483-489
Number of pages7
JournalMuscle and Nerve
Issue number4
Publication statusPublished - 01-04-2017

All Science Journal Classification (ASJC) codes

  • Physiology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Physiology (medical)


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