Abstract
INTRODUCTION: Differentiating multifocal motor neuropathy (MMN) from amyotrophic lateral sclerosis (ALS) is important, as MMN is a difficult, but treatable disorder.
METHODS: We studied peripheral nerve imaging techniques in differentiating MMN from ALS by measuring the cross-sectional area (CSA) of the median and ulnar nerves in the forearms using high resolution ultrasound (HRUS) and magnetic resonance imaging (MRI).
RESULTS: HRUS CSA values of the median nerve in the forearm (P =0.002) and the ulnar nerve distal to the sulcus (P =0.009) were significantly enlarged in patients with MMN. There was a positive correlation between CSA as measured with HRUS and MRI (Spearman rho 0.60, P<0.001).
CONCLUSION: Peripheral nerve imaging is a potentially powerful technique to distinguish MMN from ALS. This article is protected by copyright. All rights reserved.
Original language | English |
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Pages (from-to) | 1133-1135 |
Number of pages | 3 |
Journal | Muscle & Nerve |
Volume | 54 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Dec 2016 |
Keywords
- ALS
- HRUS
- MMN
- MRI
- peripheral nerve