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Ann Clin Neurophysiol > Volume 2(2); 2000 > Article
Ann Clin Neurophysiol. 2000; 2(2): 89-94.
Carpal Tunnel Syndrome : Correlation between Magnetic Resonance Imaging and Nerve Conduction Study
Seong-Ho Park, Hyunwoo Nam, Won-Joon Choi, Hee Jin Yang, Hye Won Chung, Sam Soo Kim, Sang Hyung Lee, Yong-Seok Lee, Chi Sung Song, Young Seob Chung, and Kwang-Woo Lee
Copyright © 2000 The Korean Society of Clinical Neurophysiology
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
ABSTRACT
Purpose : Carpal tunnel syndrome(CTS) is a disorder of median nerve at wrist. it is usually diagnosed through clinical manifestation and nerve conduction study(NCS). However, sometimes, NCS does not provide a reliable evidence to reach the diagnosis. Thus, authors performed this study to determine whether NCS was correlated with specific parameters measured on magnetic resonance imaging (MRI) which might become a potential complemental diagnostic tool. Methods : We performed MRI in 34 wrists of 18 patients with clinical manifestations of CTS and pathologic nerve conduction values and analyzed them at levels of the distal radioulnar joint, pisiform and hook of hamate. Results : Increase in the cross-sectional area of the median nerve a the pisiform level and flattening, increased signal intensity, and contrast enhancement of the median nerve at levels of the pisiform and hook of hamate were statistically significant, Change in cross sectional areas between the distal radioulnar joint and hamate and the signal intensities at levels of pisiform and hamate were well correlated with the median nerve conduction velocity. Conclusions : Characteristic MRI findings in CTS reported previously were well demonstrated and some of MRI parameters are well correlated with nerve conduction study. MRI, despite cost, may help in evaluating CTS.
Key words: Carpal tunnel syndrome, Magnetic resonance imaging, Nerve conduction study
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