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Ultrasound assessment of muscle thickness and muscle crosssectional area: a reliability study

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dc.contributor.authorNijholt, W.
dc.contributor.authorAandahl, Ingrid J.
dc.contributor.authorAdajar, G.
dc.contributor.authorBorgen, M. H.
dc.contributor.authorCarreiras, I.
dc.contributor.authorRab, A.
dc.contributor.authorTotland, H.
dc.contributor.authorWarmerdam, N. C.
dc.contributor.authorvan der Wal, S. C. M.
dc.contributor.authorCrofts, G.
dc.date.accessioned2017-08-21T14:28:38Z
dc.date.available2017-08-21T14:28:38Z
dc.date.issued2016
dc.description.abstractPurpose: Previous studies showed that ultrasound imaging is reliable when measuring the cross-sectional area (CSA) of a muscle. However, measurements of muscles could be affected by the level of experience of the observer. The aim of this pilot study was to investigate the reliability of observers when measuring the CSA and thickness of the rectus femoris (RF). Methods and Materials: Seven observers assessed eight different images of RF. On each image, the CSA and thickness were measured three times using ImageJ. The measurements were analyzed using IBM SPSS. Intraclass Correlation Coefficient (ICC) and Bland-Altman plots were used to analyze reliability. A Paired Sample T-Test was used to investigate any differences between the first and mean measurement recorded by the observers. Results: No significant differences were found between the first and mean of the repeated measures for CSA and thickness respectively (p = 0.217-0.817, p = 0.337-0.897). Intra-observer reliability shows excellent agreement between measurement one and the mean for each observer (CSA ICC = 0.987-1.000, thickness ICC = 0.996-1.000). High inter-observer reliability was found for both CSA (ICC = 0.938, 95% CI = 0.845-0.985) and thickness (ICC = 0.9774, 95% CI = 0.934-0.994). Agreement between an experienced and inexperienced observer was excellent (ICC = 0.991, 95% CI = 0.959-0.998). Conclusion: This pilot study shows that there is a high level of inter- and intraobserver reliability among the observers in measuring the CSA and thickness of the RF. It also shows that experience in ultrasound measurements is not a factor in reliability.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationNijholt W, Aandahl IJ, Adajar G, Borgen MH, Carreiras I, Rab A, et al. Ultrasound assessment of muscle thickness and muscle crosssectional area: a reliability study. In: OPTIMAX 2016 – Optimising image quality for medical imaging: University of Salford, Salford, Greater Manchester, UK. Manchester: University of Salford; 2016. p. 71-82.pt_PT
dc.identifier.isbn9781907842931
dc.identifier.urihttp://hdl.handle.net/10400.21/7335
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherUniversity of Salfordpt_PT
dc.relation.publisherversionhttp://usir.salford.ac.uk/41428/pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectMuscle sizept_PT
dc.subjectRectus femorispt_PT
dc.subjectReliabilitypt_PT
dc.subjectUltrasoundpt_PT
dc.subjectCross-sectional areapt_PT
dc.titleUltrasound assessment of muscle thickness and muscle crosssectional area: a reliability studypt_PT
dc.typebook part
dspace.entity.typePublication
oaire.citation.endPage82pt_PT
oaire.citation.startPage71pt_PT
oaire.citation.titleOPTIMAX 2016pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typebookPartpt_PT

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