Department of Neurology, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands.
Neurol Sci. 2010 Dec;31(6):721-5. doi: 10.1007/s10072-010-0258-9. Epub 2010 Apr 29.
High resolution sonography is a relatively new diagnostic technique in diagnosing carpal tunnel syndrome (CTS). Normal values in different studies, however, vary and this makes their practical use difficult. The aim of this study was to establish normal values for the median nerve cross-sectional area (CSA) and to investigate the value of measuring additional parameters. Ninety-eight wrists of 29 women and 25 men without signs or symptoms of CTS were included. Width and circumference of the wrist were measured. The CSA of the median nerve at the level of the pisiform bone was measured using ultrasonography. We found a significant correlation between the CSA of the median nerve at the wrist and wrist circumference. Measuring wrist circumference will establish the upper level of normal more accurately compared to predictions solely based upon gender. This has important implications in diagnosing CTS with ultrasonography.
高频超声是一种用于诊断腕管综合征（CTS）的相对较新的诊断技术。然而，不同研究中的正常值不同，这使得它们的实际应用变得困难。本研究的目的是建立正中神经横截面积（CSA）的正常值，并探讨测量其他参数的价值。纳入了 29 名女性和 25 名男性的 98 只手腕，这些手腕均无 CTS 的迹象或症状。测量了手腕的宽度和周长。使用超声测量了钩骨水平正中神经的 CSA。我们发现正中神经 CSA 与手腕周长之间存在显著相关性。与仅基于性别的预测相比，测量手腕周长可以更准确地确定正常值上限。这对使用超声诊断 CTS 具有重要意义。
