ULTRASOUND ASSESSMENT OF TRANSVERSE CARPAL LIGAMENT THICKNESS: A VALIDITY AND RELIABILITY STUDY
ULTRASOUND ASSESSMENT OF TRANSVERSE CARPAL LIGAMENT THICKNESS: A VALIDITY AND RELIABILITY STUDY
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DOI：
10.1016/j.ultrasmedbio.2012.02.021
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发表时间：
2012-06-01
影响因子：
2.9
通讯作者：
Li, Zong-Ming
中科院分区：
文献类型：
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作者：
Shen, Zhilei Liu;Li, Zong-Ming
腕横韧带（TCL）形成腕管的掌侧边界，在腕管力学中起着重要作用。TCL肥大已被观察到的个人与腕管综合征（CTS）和假定为一个潜在的病因。超声对于TCL成像是特别有利的，因为其能够检测TCL与其他组织之间的界面。本研究的目的是建立一种基于超声的TCL厚度测量方法，并检验该方法的有效性和可靠性。三名操作员对8例尸体标本和8例健康志愿者进行了两次超声检查。使用自定义脚本根据超声图像计算沿着TCL长度的TCL厚度。将尸体标本的基于超声的TCL厚度与基于解剖的TCL厚度进行比较以进行确认。结果表明，Pearson相关系数为0.867-0.928，组内相关系数（ICC）为0.726-0.865，测量标准误差为0.02-0.07 mm，最小可检测差值为0.05-0.15 mm，相关系数高，误差小，表明超声法测量TCL厚度是有效的。此外，超声测量显示了良好的术者和术中可靠性，ICC值分别为0.826-0.933和0.840-0.882。基于超声的TCL厚度在0.93-2.34（1.54 +/- 0.33）mm范围内，与先前研究一致。在这项研究中开发的超声方法是一个有价值的工具，检查健康和病理性TCL的形态学特性。（电子邮件：liz4@ccf.org）（C）2012年世界医学和生物学超声联合会。
The transverse carpal ligament (TCL) forms the palmar boundary of the carpal tunnel and plays an important role in carpal tunnel mechanics. TCL hypertrophy has been observed for individuals with carpal tunnel syndrome (CTS) and postulated as a potential etiologic factor. Ultrasound is particularly advantageous for TCL imaging because of its capability of detecting the interfaces between the TCL and other tissues. The purposes of this study were to develop an ultrasound based method to measure the TCL thickness and to test the validity and reliability of this method. Three operators conducted two sessions of ultrasound examination on eight cadaveric specimens and eight healthy volunteers. A custom script was used to calculate TCL thickness along the TCL length from the ultrasound images. The ultrasound based TCL thickness of the cadaveric specimens was compared with the dissection based TCL thickness for validation. The results showed Pearson's correlation coefficients of 0.867-0.928, intraclass correlation coefficient (ICC) values of 0.726-0.865, a standard error of measurement of 0.02-0.07 mm and a minimal detectable difference of 0.05-0.15 mm. The high correlation coefficients and small errors indicate that the ultrasound based method is valid for measuring TCL thickness. Furthermore, ultrasound measurements showed excellent intraoperator and interoperator reliability with ICC values as 0.826-0.933 and 0.840-0.882, respectively. The ultrasound based TCL thickness was in the range of 0.93-2.34 (1.54 +/- 0.33) mm and agreed well with previous studies. The ultrasound method developed in this study is a valuable tool to examine morphologic properties of healthy and pathologic TCLs. (E-mail: liz4@ccf.org) (C) 2012 World Federation for Ultrasound in Medicine & Biology.