| Ultrasound assessment of transverse carpal ligament thickness: a validity and reliability study. | |
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MedLine Citation:
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PMID: 22502882 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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Zhilei Liu Shen; Zong-Ming Li |
Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Validation Studies Date: 2012-04-12 |
Journal Detail:
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Title: Ultrasound in medicine & biology Volume: 38 ISSN: 1879-291X ISO Abbreviation: Ultrasound Med Biol Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-05-07 Completed Date: 2012-09-20 Revised Date: 2013-02-04 |
Medline Journal Info:
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Nlm Unique ID: 0410553 Medline TA: Ultrasound Med Biol Country: England |
Other Details:
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Languages: eng Pagination: 982-8 Citation Subset: IM |
Copyright Information:
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Copyright © 2012 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH 44195, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cadaver Carpal Bones / ultrasonography* Carpal Tunnel Syndrome / ultrasonography Female Humans Ligaments, Articular / ultrasonography* Male Reference Values Reproducibility of Results Wrist Joint / ultrasonography* |
| Grant Support | |
ID/Acronym/Agency:
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R03 AR054510-01A1/AR/NIAMS NIH HHS; R03AR054510/AR/NIAMS NIH HHS; R21 AR062753/AR/NIAMS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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