PDF(Pubmed)
Abstract：
Ultrasound imaging (US) is being increasingly used to aid in the diagnosis of entrapment neuropathies. This study aims to evaluate the shear modulus and cross-sectional area (CSA) of the median nerve in patients with carpal tunnel syndrome (CTS). A total of 35 patients with CTS participated in the study. CSA and shear modulus testing were performed in shear wave elastography (SWE) mode in five positions of the right and left radiocarpal joints (intermediate position 0°, 45° of extension, maximum extension, 45° of flexion, and maximum flexion). There were significant side-to-side differences in the median nerve shear modulus at each wrist position as compared to the asymptomatic side. There were significant side-to-side differences in the median nerve CSA at each wrist position as compared to the asymptomatic side. Shear modulus increases in patients with CTS at different angular positions of flexion and extension of the radiocarpal joint. In individuals with CTS, the CSA of the median nerve is greater on the symptomatic side compared to the asymptomatic side. The CSA decreases in positions of maximum extension and 45° of flexion and in maximum flexion relative to the resting position.
摘要：
超声成像（US）越来越多地用于辅助诊断陷入神经病。本研究旨在评估腕管综合征（CTS）患者正中神经的剪切模量和横截面积（CSA）。共有35名患有CTS的患者参加了该研究。CSA和剪切模量测试在剪切波弹性成像（SWE）模式下在左右桡骨关节的五个位置（中间位置0°，45°延伸,最大延伸,45°屈曲,和最大屈曲）。与无症状侧相比，每个腕部位置的正中神经剪切模量存在显着的左右差异。与无症状侧相比，每个腕部位置的正中神经CSA存在显着的左右差异。在腕骨关节屈曲和伸展的不同角度位置，CTS患者的剪切模量增加。在患有CTS的个人中，与无症状侧相比，有症状侧的正中神经CSA更大。CSA在最大伸展和45°弯曲的位置以及相对于静止位置的最大弯曲位置减小。
