Influence of transducer orientation on shear wave velocity measurements of the iliotibial band

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorSchool of Health and Rehabilitation Sciences-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversity of Nantes-
Autor(es): dc.contributorInstitut Universitaire de France (IUF)-
Autor(es): dc.creatorBesomi, Manuela-
Autor(es): dc.creatorNava, Guilherme Thomaz de Aquino [UNESP]-
Autor(es): dc.creatorvan den Hoorn, Wolbert-
Autor(es): dc.creatorHug, François-
Autor(es): dc.creatorVicenzino, Bill-
Autor(es): dc.creatorHodges, Paul W.-
Data de aceite: dc.date.accessioned2022-02-22T00:50:12Z-
Data de disponibilização: dc.date.available2022-02-22T00:50:12Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-05-07-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jbiomech.2021.110346-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/207423-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/207423-
Descrição: dc.descriptionTissue anisotropy influences estimation of mechanical properties of connective tissues, such as the iliotibial band (ITB). This study investigated the influence of ultrasound transducer rotation and tilt on shear wave velocity (SWV, an index of stiffness) measurements of the ITB and the intra-rater repeatability of SWV measurements in the longitudinal direction. SWV was measured unilaterally (dominant limb) using ultrasound shear wave elastography in the middle region of the ITB in supine at rest (20-25° knee flexion) in ten healthy volunteers (4 females). A 3-dimensional video system provided real-time feedback of probe orientation with respect to the thigh. Measurements were made at 10° increments of probe rotation, from longitudinal to transverse alignment relative to the approximate direction of ITB fibres, and 5-10° tilts about the longitudinal and sideways axes of the transducer. One-way repeated measures ANOVA compared SWV between angles and tilts. Intraclass correlation coefficients (ICCs) and standard error of measurement (SEM) were used to calculate repeatability for two to five (longitudinal only) repetitions. SWV was greatest when the transducer was aligned to ITB fibres (longitudinal: 10.5 ± 1.7 m/s) and lowest when perpendicular (transverse: 5.8 ± 2.4 m/s). Compared to longitudinal alignment, SWV decreased significantly (p < 0.01) when the transducer was rotated 20° or more. Tilted measurements did not differ between angles. Intra-rater repeatability was excellent with the average of two measurements (ICC = 0.99, 95% CI 0.95, 0.99; SEM = 0.31 m/s). These findings show that SWV changes with orientation relative to fibre direction. Transducer orientation requires careful control to ensure comparable measures.-
Descrição: dc.descriptionNational Health and Medical Research Council-
Descrição: dc.descriptionThe University of Queensland School of Health and Rehabilitation Sciences-
Descrição: dc.descriptionDepartment of Physical Education Institute of Biosciences of Rio Claro São Paulo State University (UNESP)-
Descrição: dc.descriptionFaculty of Sport Sciences Laboratory “Movement Interactions Performance” (EA 4334) University of Nantes-
Descrição: dc.descriptionInstitut Universitaire de France (IUF)-
Descrição: dc.descriptionDepartment of Physical Education Institute of Biosciences of Rio Claro São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationJournal of Biomechanics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnisotropy-
Palavras-chave: dc.subjectIliotibial band-
Palavras-chave: dc.subjectShear wave elastography-
Palavras-chave: dc.subjectStiffness-
Título: dc.titleInfluence of transducer orientation on shear wave velocity measurements of the iliotibial band-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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