Ultrasonographic measurement of the cross-sectional area of the axillary nerve

Joon Shik Yoon, Jung Hyun Park, Joshua Levin, Eugene Y. Roh, Hye Jung Park, Sun Jae Won

Research output: Contribution to journalArticlepeer-review

Abstract

Introduction: The objectives of this study were to determine normal reference values for ultrasonographic measurement of the cross-sectional area (CSA) of the axillary nerve and to standardize the measurement methods. Methods: Sixty healthy volunteers were evaluated. Ultrasonography was performed with the shoulder positioned in 100°–120° abduction and 90° external rotation. The CSA of the axillary nerve was measured bilaterally. Results: The normal CSA of the right axillary nerve was 2.9 ± 1.1 mm2. The side-to-side discrepancy was 22.8% ± 17.8%. Discussion: These reference values may be helpful for investigating pathologies involving the axillary nerve.

Original languageEnglish
Pages (from-to)95-99
Number of pages5
JournalMuscle and Nerve
Volume60
Issue number1
DOIs
Publication statusPublished - 2019 Jul

Keywords

  • axillary nerve
  • nerve cross-sectional area
  • reference values
  • shoulder
  • ultrasonography

ASJC Scopus subject areas

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

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