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Ultrasonographic reference values for assessing normal radial nerve ultrasonography in the normal population

Neural Regeneration Research 2014年第20期9卷 1844-1849页

作者： Jun Chen Shan Wu Jun Ren Department of Neurology Affiliated Hospital of Guiyang Medical College Lianshui County Hospital of Jiangsu Proviuce Pharmacology University of Wyoming College of Health Sciences Wyoming INBRE ProgramLaramieWYUSA

high-resolution ultrasound has been used recently to characterize median and ulnar nerves, but is seldom used to characterize radial nerves. The radial nerve is more frequently involved in en- trapment syndromes than the ulnar and median nerves. However, the reference standard for normal radial nerves has not been established. Thus, this study measured the cross-sectional areas of radial nerves of 200 healthy male or female volunteers, aged 18 to 75, using high-resolution ultrasound. The results showed that mean cross-sectional areas of radial nerves at 4 cm upon the lateral epicondyle of the humerus and mid-humerus （midpoint between the elbow crease and axilla） were 5.14± 1.24 and 5.08 ± 1.23 mm2, respectively. The age and the dominant side did not affect the results, but the above-mentioned cross-sectional areas were larger in males （5.31± 1.25 and 5.19 ±1.23 mm2） than in females （4.93 ± 1.21 and 4.93 ± 1.23 mm2, respectively）. In addition, the cross-sectional areas of radial nerves were positively correlated with height and weight （r = 0.38, 0.36, respectively, both P 〈 0.05）. These data provide basic clinical data for the use of high-resolution ultrasound for the future diagnosis, treatment, and prognostic evalua- tion of peripheral neuropathies.

关键词： nerve regeneration high-resolution ultrasound radial nerve cross-sectional area peripheral nerve nerve lesion neural regeneration

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