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 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, p < 0.001) and MAS (r = 0.19, p = 0.002) were significantly higher than true distances (TD). Strong correlations were found between RT and TD (ICC: 0.98, p < 0.001), MAS and TD (ICC: 0.95, p < 0.001), and MAS and RT (ICC: 0.97, p < 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. View Full-Text Keywords: ultrasound; reflective tape; transducer movement

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Author:Lisa MohrORCiD, Lutz VogtGND, Jan WilkeORCiDGND
Parent Title (German):Life
Place of publication:Basel
Document Type:Article
Date of Publication (online):2021/01/30
Date of first Publication:2021/01/30
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2021/02/04
Tag:reflective tape; transducer movement; ultrasound
Issue:Article 104
Page Number:8
Institutes:Psychologie und Sportwissenschaften / Sportwissenschaften
Dewey Decimal Classification:7 Künste und Unterhaltung / 79 Sport, Spiele, Unterhaltung / 790 Freizeitgestaltung, darstellende Künste, Sport
Open-Access-Publikationsfonds:Psychologie und Sportwissenschaften
Licence (German):License LogoCreative Commons - Namensnennung 4.0