The comparison between ultrasonography and electrodiagnosis value in diagnosing carpal tunnel syndrome

AUTHORS

Soheila Samadzadeh 1 , Mandana Motameni 2 , Mansour Rezaei 3 , * , Cyrus Rezaei 4 , Javad Faroukhi 5

1 Dept. of Physical Medicine and Rehabilitation, Medical School, Kermanshah University of Medical Sciences, Kermanshah, Iran

2 Dept. of Radiology, Medical School, Kermanshah University of Medical Sciences, Kermanshah, Iran

3 Dept. of Biostatistics and Epidemiology, School of Public Health and Social Development & Health Promotion Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran

4 Dept. of Orthopedic Surgery, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran

5 Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran

How to Cite: Samadzadeh S, Motameni M, Rezaei M, Rezaei C, Faroukhi J. The comparison between ultrasonography and electrodiagnosis value in diagnosing carpal tunnel syndrome, J Kermanshah Univ Med Sci. 2013 ; 17(4):e77101.

ARTICLE INFORMATION

Journal of Kermanshah University of Medical Sciences: 17 (4); e77101
Published Online: July 29, 2013
Article Type: Research Article
Received: January 16, 2013
Accepted: May 21, 2013

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Abstract

Background: Carpal tunnel syndrome (CTU) is the most common neuropathy in the body and one of the most important causes of occupational disability. The aim of the present study was to compare the diagnostic power of Doppler sonography and Gray Scale in diagnosing CTS and their comparison with nerve conduction studies (NCV).

Methods: In this analytical study, diagnostic value of Doppler and Gray Scale on the 133 patients was compared and NCV considered as the gold standard. The patientswith pain or upper extremity paresthesia were identified by an orthoped. First of all nerve conduction velocity of patients was performed and the sonographer, unaware of the NCV, performed Gray scale and Doppler ultrasounography. Indices of sensitivity, specificity and accuracy of these tests were used to calculate the best cross-diagnostic ROC curve.

Results: 50 patients with CTS and 83 non CTU patients were surveied. Of these patients, 42 patients (6/31%) had positive Dopplerand and 30 (6/22%) had Gray scale. Sensitivity, specificity, and accuracy of Gray scale sonography were 58, 99 and 83 percent and those of Doppler were 80, 97 and 91%, respectively.  The median nerve cross-border diagnostic was estimated to be 11.15 mm².

Conclusion: Gray scale and Doppler ultrasounography can be used to diagnose carpal tunnel syndrome. Sensitivity of Doppler ultrasound in the early stages of disease is higher than Gray scale but none of these methods can replaced be NCV.

Keywords

carpal tunnel syndrome diagnostic value gray scale Sonography doppler electrodiagnosis

© 2013, Journal of Kermanshah University of Medical Sciences. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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