Correlation between Ultrasonography Findings and Electrodiagnostic Severity in Carpal Tunnel Syndrome: 3D Ultrasonography
Journal of Clinical Neurology 2014³â 10±Ç 4È£ p.348 ~ p.353
±ÇÈñ±Ô(Kwon Hee-Kyu) - Korea University College of Medicine Korea University Anam Hospital Department of Physical Medicine and Rehabilitation
°È¿Áß(Kang Hyo-Jung) - Korea University College of Medicine Korea University Guro Hospital Department of Physical Medicine and Rehabilitation
(Byun Chan-Woo) - Korea University College of Medicine Korea University Guro Hospital Department of Physical Medicine and Rehabilitation
À±ÁؽÄ(Yoon Joon-Shik) - Korea University College of Medicine Korea University Guro Hospital Department of Physical Medicine and Rehabilitation
°Ã¢È£(Kang Chang-Ho) - Korea University College of Medicine Korea University Anam Hospital Department of Radiology
Æí¼º¹ü(Pyun Sung-Bum) - Korea University College of Medicine Korea University Anam Hospital Department of Physical Medicine and Rehabilitation
Abstract
Background and Purpose: To determine the correlation between the cross-sectional area (CSA) of the median nerve measured at the wrist using three-dimensional (3D) ultrasonography (US) and the electrophysiological severity of carpal tunnel syndrome (CTS).
Methods: We prospectively examined 102 wrists of 51 patients with clinical CTS, which were classified into 3 groups according to the electrodiagnostic (EDX) findings. Median nerve CSAs were measured using 3D US at the carpal tunnel inlet and at the level of maximal swelling.
Results: Ten wrists were negative for CTS. Of the 92 CTS-positive wrists, 23, 30, and 39 were classified as having mild, moderate, and severe CTS, respectively. The median nerve CSA differed significantly between the severe- and moderate-CTS groups (p=0.0007 at the carpal tunnel inlet and p<0.0001 at the maximal swelling site). There was a correlation between median nerve CSA and EDX parameters among those wrists with severe and mild CTS (p<0.0001 at both sites).
Conclusions: The median nerve CSA as measured by 3D US could provide additional information about the severity of CTS, as indicated by the strong correlation with standard EDX findings.
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three-dimensional ultrasonography, carpal tunnel syndrome, cross-sectional area, electrophysiological severity, median nerve
KMID :
1130620140100040348
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