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Paying attention to carpal tunnel contents lesions: ultrasound for evaluation of carpal tunnel syndrome
  1. Jiaan zhu,
  2. Fang Liu
  1. Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
  1. Correspondence to Professor Jiaan zhu, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, 600 Yishan Road, Shanghai, China; zhuja{at}sjtu.edu.cn

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We read with great interest the report by Dejaco et al1 related to diagnosis of carpal tunnel syndrome (CTS) by ultrasound. Dejaco et al compared ultrasound measurement of median nerve cross-sectional area (CSA) at different anatomical landmarks in great detail and evaluated the value of intranerval power Doppler signals for CTS diagnosis. It provided a good data support for the ultrasonic evaluation of CTS. However, this study prompts questions on the three following points:

  1. CSA as an important indicator for CTS diagnosis also has limitations. We do agree that CSA is the most commonly used for evaluation of nerve swelling. …

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