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Median nerve ultrasound as a screening tool in carpal tunnel syndrome: correlation of cross-sectional area measures with electrodiagnostic abnormality.

Publication ,  Journal Article
Mhoon, JT; Juel, VC; Hobson-Webb, LD
Published in: Muscle Nerve
December 2012

INTRODUCTION: Sonographically measured median nerve cross-sectional area (CSA) at the wrist is increased in patients with carpal tunnel syndrome (CTS). Ultrasound of the median nerve may be useful in screening for electrodiagnostic (EDx) abnormalities. METHODS: EDx studies were performed on all participants. Sonographic evaluation of median nerve CSA at the wrist and in the forearm was performed by a physician blinded to the EDx results. Multivariate and receiver operating characteristic (ROC) analysis were used to assess the data. RESULTS: Fifty control wrists and 192 symptomatic wrists were analyzed. Sensitivity of ultrasound in excluding EDx abnormality was 99% for CSA of 9 mm(2) and 97% for a wrist-forearm ratio (WFR) of 1.4. There was no clinically significant correlation between ultrasound parameters and EDx severity. CONCLUSIONS: Median nerve ultrasound is a highly sensitive screening tool for EDx abnormality, but it cannot determine severity. This may lead to changes in the current standards for evaluating CTS.

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Published In

Muscle Nerve

DOI

EISSN

1097-4598

Publication Date

December 2012

Volume

46

Issue

6

Start / End Page

871 / 878

Location

United States

Related Subject Headings

  • Wrist
  • Ultrasonography
  • Severity of Illness Index
  • Reproducibility of Results
  • ROC Curve
  • Neurology & Neurosurgery
  • Neural Conduction
  • Middle Aged
  • Median Nerve
  • Male
 

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Mhoon, J. T., Juel, V. C., & Hobson-Webb, L. D. (2012). Median nerve ultrasound as a screening tool in carpal tunnel syndrome: correlation of cross-sectional area measures with electrodiagnostic abnormality. Muscle Nerve, 46(6), 871–878. https://doi.org/10.1002/mus.23426
Mhoon, Justin T., Vern C. Juel, and Lisa D. Hobson-Webb. “Median nerve ultrasound as a screening tool in carpal tunnel syndrome: correlation of cross-sectional area measures with electrodiagnostic abnormality.Muscle Nerve 46, no. 6 (December 2012): 871–78. https://doi.org/10.1002/mus.23426.
Mhoon, Justin T., et al. “Median nerve ultrasound as a screening tool in carpal tunnel syndrome: correlation of cross-sectional area measures with electrodiagnostic abnormality.Muscle Nerve, vol. 46, no. 6, Dec. 2012, pp. 871–78. Pubmed, doi:10.1002/mus.23426.
Journal cover image

Published In

Muscle Nerve

DOI

EISSN

1097-4598

Publication Date

December 2012

Volume

46

Issue

6

Start / End Page

871 / 878

Location

United States

Related Subject Headings

  • Wrist
  • Ultrasonography
  • Severity of Illness Index
  • Reproducibility of Results
  • ROC Curve
  • Neurology & Neurosurgery
  • Neural Conduction
  • Middle Aged
  • Median Nerve
  • Male