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KMID : 1143020200250010008
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Archives of Hand and Microsurgery
2020 Volume.25 No. 1 p.8 ~ p.16
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Analysis of Sonographic Measurement by Anatomical Area in Carpal Tunnel Syndrome and Correlation the Measurement with Electrodiagnostic Study
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Park Jung-Woo
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Abstract
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Purpose: To evaluate effectiveness of ultrasonographic measurement of carpal tunnel by anatomical area and correlation with electrodiagnostic study in diagnosis of carpal tunnel syndrome.
Methods: From September 2018 to March 2019, we performed the ultrasonography for 30 cases with carpal tunnel syndrome diagnosed with electrodiagnosis and 30 cases as control group. We measured median nerve diameter, cross-sectional area (CSA), and flattening ratio (FR) by area of carpal tunnel. We analyzed the difference of measurement between two groups and correlate the measurement with electrodiagnosis findings.
Results: There was significant statistically differences in sonographic measurement between two groups by independent t-test (CSA zone 1, p=0.01; FR zone 2, p=0.000; FR zone 3; p=0.001). With Pearson correlation test, there was correlation between sonographic measurement and electrodiagnostic findings (terminal latency and nerve conduction velocity) statistically, but the Pearson coefficient was low (r<0.4).
Conclusion: By anatomical area, the available value of sonographic measurement was different. But, as the values were has low power to diagnose the carpal tunnel syndrome, ultrasonography is proper to use as a complementary tool in diagnosis of carpal tunnel syndrome.
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KEYWORD
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Carpal tunnel syndrome, Ultrasonography, Electrodiagnosis
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