The Diagnostic Value of Ultrasonography in Korean Carpal Tunnel Syndrome Patients
- Abstract
- Objective
The purpose of this study was to assess the diagnostic utility of the wrist ultrasonography (USG) in patients with and without carpal tunnel syndrome (CTS).
Methods
Individuals with electrodiagnostically proven CTS patients and healthy control subjects were enrolled prospectively. USG was done 60 wrists of 48 patients with CTS and 36 wrists of 18 controls. The USG analysis included median nerve cross sectional area (CSA) at the level of carpal tunnel inlet. We also evaluated the relationship between median nerve CSA at the level of carpal tunnel inlet and severity grade of nerve conduction test in CTS patients.
Results
The median nerve CSA at the level of carpal tunnel inlet was significantly larger in CTS patients (13.6 mm2 versus 7.7 mm2,p<0.0001). And there was an association between median nerve CSA and severity grade of nerve conduction studies (p=0.036). Receiver operating characteristics (ROC) analysis yielded sensitivity of 86.7% and specificity of 88.9% using a cut-off value of 9 mm2. But the specificity was increased to 97.2%, although sensitivity was decreased to 78.3%, when using cut-off value at 10.1 mm2.
Conclusion
Ultrasonographic measurement of the median nerve CSA at carpal tunnel inlet was useful in diagnosis of CTS. According to ROC analysis, USG is used as a complementary test for electrodiagnostic test.
- All Author(s)
- J. H. Shim
; J. W. Doh
; K. S. Lee
; J. J. Shim
; S. M. Yoon
; H. G. Bae
- Issued Date
- 2013
- Type
- Article
- Keyword
- Carpal tunnel syndrome; Ultrasonography; Electrodiagnosis
- Publisher
- 대한신경손상학회
Korean Neurotraumatology Society
- ISSN
- 2234-8999
; 2288-2243
- Citation Title
- Korean journal of neurotrauma
- Citation Volume
- 9
- Citation Number
- 1
- Citation Start Page
- 1
- Citation End Page
- 5
- Language(ISO)
- eng
- DOI
- 10.13004/kjnt.2013.9.1.1
- URI
- http://schca-ir.schmc.ac.kr/handle/2022.oak/2874
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