Use of Reflective Tape to Detect Ultrasound Transducer Movement: A Validation Study

During dynamic ultrasound assessments, unintended transducer movement over the skin needs to be prevented as it may bias the results. The present study investigated the validity of two methods quantifying transducer motion. An ultrasound transducer was moved on a pre-specified 3 cm distance over the...

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Main Authors: Lisa Mohr, Lutz Vogt, Jan Wilke
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Life
Subjects:
Online Access:https://www.mdpi.com/2075-1729/11/2/104
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author Lisa Mohr
Lutz Vogt
Jan Wilke
author_facet Lisa Mohr
Lutz Vogt
Jan Wilke
author_sort Lisa Mohr
collection DOAJ
description During dynamic ultrasound assessments, unintended transducer movement over the skin needs to be prevented as it may bias the results. The present study investigated the validity of two methods quantifying transducer motion. An ultrasound transducer was moved on a pre-specified 3 cm distance over the semitendinosus muscle of eleven adults (35.8 ± 9.8 years), stopping briefly at intervals of 0.5 cm. Transducer motion was quantified (1) measuring the 2-D displacement of the shadow produced by reflective tape (RT) attached to the skin and (2) using a marker-based, three-dimensional movement analysis system (MAS). Differences between methods were detected with Wilcoxon tests; associations were checked by means of intraclass correlation coefficients (ICC 3.1) and Bland–Altman plots. Values for RT (r = 0.57, <i>p</i> < 0.001) and MAS (r = 0.19, <i>p</i> = 0.002) were significantly higher than true distances (TD). Strong correlations were found between RT and TD (ICC: 0.98, <i>p</i> < 0.001), MAS and TD (ICC: 0.95, <i>p</i> < 0.001), and MAS and RT (ICC: 0.97, <i>p</i> < 0.001). Bland–Altman plots showed narrow limits of agreement for both RT (−0.49 to 0.13 cm) and MAS (−0.49 to 0.34 cm) versus TD. RT and MAS are valid methods to quantify US transducer movement. In view of its low costs and complexity, RT can particularly be recommended for application in research and clinical practice.
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spelling doaj.art-6fe0303d10044710a798abb268875ff62023-12-03T15:19:59ZengMDPI AGLife2075-17292021-01-0111210410.3390/life11020104Use of Reflective Tape to Detect Ultrasound Transducer Movement: A Validation StudyLisa Mohr0Lutz Vogt1Jan Wilke2Department of Sports Medicine, Goethe University Frankfurt, 60323 Frankfurt/Main, GermanyDepartment of Sports Medicine, Goethe University Frankfurt, 60323 Frankfurt/Main, GermanyDepartment of Sports Medicine, Goethe University Frankfurt, 60323 Frankfurt/Main, GermanyDuring dynamic ultrasound assessments, unintended transducer movement over the skin needs to be prevented as it may bias the results. The present study investigated the validity of two methods quantifying transducer motion. An ultrasound transducer was moved on a pre-specified 3 cm distance over the semitendinosus muscle of eleven adults (35.8 ± 9.8 years), stopping briefly at intervals of 0.5 cm. Transducer motion was quantified (1) measuring the 2-D displacement of the shadow produced by reflective tape (RT) attached to the skin and (2) using a marker-based, three-dimensional movement analysis system (MAS). Differences between methods were detected with Wilcoxon tests; associations were checked by means of intraclass correlation coefficients (ICC 3.1) and Bland–Altman plots. Values for RT (r = 0.57, <i>p</i> < 0.001) and MAS (r = 0.19, <i>p</i> = 0.002) were significantly higher than true distances (TD). Strong correlations were found between RT and TD (ICC: 0.98, <i>p</i> < 0.001), MAS and TD (ICC: 0.95, <i>p</i> < 0.001), and MAS and RT (ICC: 0.97, <i>p</i> < 0.001). Bland–Altman plots showed narrow limits of agreement for both RT (−0.49 to 0.13 cm) and MAS (−0.49 to 0.34 cm) versus TD. RT and MAS are valid methods to quantify US transducer movement. In view of its low costs and complexity, RT can particularly be recommended for application in research and clinical practice.https://www.mdpi.com/2075-1729/11/2/104ultrasoundreflective tapetransducer movement
spellingShingle Lisa Mohr
Lutz Vogt
Jan Wilke
Use of Reflective Tape to Detect Ultrasound Transducer Movement: A Validation Study
Life
ultrasound
reflective tape
transducer movement
title Use of Reflective Tape to Detect Ultrasound Transducer Movement: A Validation Study
title_full Use of Reflective Tape to Detect Ultrasound Transducer Movement: A Validation Study
title_fullStr Use of Reflective Tape to Detect Ultrasound Transducer Movement: A Validation Study
title_full_unstemmed Use of Reflective Tape to Detect Ultrasound Transducer Movement: A Validation Study
title_short Use of Reflective Tape to Detect Ultrasound Transducer Movement: A Validation Study
title_sort use of reflective tape to detect ultrasound transducer movement a validation study
topic ultrasound
reflective tape
transducer movement
url https://www.mdpi.com/2075-1729/11/2/104
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