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Influence of examiners’ experience and region of interest location on semiquantitative elastography validity and reliability

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dc.contributor.authorValera Calero, Juan Antonio
dc.contributor.authorFernández de las Peñas, César
dc.contributor.authorFernández Rodríguez, Tomás
dc.contributor.authorArias Buría, José Luis
dc.contributor.authorVarol, Umut
dc.contributor.authorGallego Sendarrubias, Gracia María
dc.contributor.funderUniversidad Camilo José Cela
dc.contributor.rorhttps://ror.org/02jjdwm75
dc.date.accessioned2024-09-16T11:17:11Z
dc.date.available2024-07-08T13:14:18Z
dc.date.available2024-09-16T11:17:11Z
dc.date.issued2021
dc.description.abstractSemi-quantitative elastography is a promising imaging technique to evaluate tissue stiffness differences,providing data regarding relative stiffness differences between two targets. The aims of this study were to assess the validity,inter?examiner reliability and variability of semi-quantitative elastography for calculating strain ratios (SR) in a homogeneous gel phantom in different locations within the image. A diagnostic accuracy study was performed in a homogeneous stiffness phantom. Four examiners participated (two novice and two experienced). Each examiner assessed the SR in two locations. Difference between examiners,variability of measurements,SR error and absolute error,mean error of the measurements and coefficient of variation were calculated. The agreement between examiners,validity and variability of measurements were higher in the central area than the lateral areas of the images. Thus,the experience of the examiner was relevant for the concordance of the measurements in the lateral areas of the images (SR difference of 0.14 ± 0.05; p < 0.001),but not for the central area (SR difference of 0.05 ± 0.02; p > 0.05). Our data suggested that semi?quantitative elastography is an accurate tool for assessing small magnitude stiffness differences within the same image in central areas,but the experience of the examiner is a determinant factor. © 2021 by the authors. Licensee MDPI,Basel,Switzerland.
dc.description.fundingtypeThis research and the APC were funded by Camilo José Cela University
dc.description.fundingtypegrant number ELECTROP.
dc.description.keywordCalibration
dc.description.keywordElastography
dc.description.keywordReliability
dc.description.keywordUltrasound imaging
dc.description.keywordValidity
dc.formatapplication/pdf
dc.identifier.citationValera-Calero, J. A., Fernández-de-las-Peñas, C., Fernández-Rodríguez, T., Arias-Buría, J. L., Varol, U., & Gallego-Sendarrubias, G. M. (2021). Influence of examiners’ experience and region of interest location on semiquantitative elastography validity and reliability. Applied Sciences, 11(19), 9247.
dc.identifier.doihttps://doi.org/10.3390/app11199247
dc.identifier.issn20763417
dc.identifier.officialurlhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85116575150&doi=10.3390%2fapp11199247&partnerID=40&md5=d6430751974fe611d7372f5f915057c3
dc.identifier.urihttps://hdl.handle.net/20.500.14417/3254
dc.issue.number19
dc.journal.titleApplied Sciences (Switzerland)
dc.language.isoeng
dc.publisherMDPI
dc.relation.departmentAccounting & Management Control
dc.relation.entityIE University
dc.relation.schoolIE Business School
dc.rightsAttribution 4,0 International
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleInfluence of examiners’ experience and region of interest location on semiquantitative elastography validity and reliability
dc.typeinfo:eu-repo/semantics/article
dc.version.typeinfo:eu-repo/semantics/publishedVersion
dc.volume.number11
dspace.entity.typePublication
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