Variability in the assessment of myocardial strain patterns: implications for adequate interpretation

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• dc.contributor.author Nicolas Duchateau
• dc.contributor.author Filip Loncaric
• dc.contributor.author Maja Cikes
• dc.contributor.author Adelina Doltra
• dc.contributor.author Marta Sitges
• dc.contributor.author Bijnens, Bart
• dc.date.accessioned 2020-03-18T16:13:19Z
• dc.date.issued 2020
• dc.description.abstract Variability in global and regional peak strain has been thoroughly studied, but variability in spatiotemporal myocardial strain patterns has not been studied as well. This study reports on such variability and its implications for adequate disease interpretation. Forty in-training operators, distributed on 20 workstations, analyzed six cases with representative deformation patterns with commercial speckle tracking. Inter­operator differences were quantified through the variability in myocardial delineations, spatiotemporal longitudinal strain patterns and peak longitudinal strain. Intra­operator differences were assessed similarly using 10 repeated measurements from a single clinician expert. Delineations varied mainly along the lateral wall and at the valve level. Peak longitudinal strain variability was low to moderate. The spatiotemporal strain patterns were consistent despite high variability at the apex and near the valve. The results indicate that relevant pattern assessment is possible despite heterogeneous experience with speckle tracking and that careful interpretation of pattern abnormalities should be recommended before a more systematic quantitative analysis.en
• dc.description.sponsorship This work was partially supported by the Spanish Ministry of Economy and Competitiveness [grant TIN2014-52923-R; Maria de Maeztu Units of Excellence Programme - MDM-2015-0502] and FEDER, and the European Union H2020 programme [PIC H2020-MSCA-ITN-2017-764738].
• dc.format.mimetype application/pdf
• dc.identifier.citation Duchateau N, Loncaric F, Cikes M, Doltra A, Sitges M, Bijnens B. Variability in the assessment of myocardial strain patterns: implications for adequate interpretation. Ultrasound Med Biol. 2020 Feb;46(2):244-54. DOI: 10.1016/j.ultrasmedbio.2019.10.013
• dc.identifier.doi http://dx.doi.org/10.1016/j.ultrasmedbio.2019.10.013
• dc.identifier.issn 0301-5629
• dc.identifier.uri http://hdl.handle.net/10230/43939
• dc.language.iso eng
• dc.publisher Elsevier
• dc.relation.ispartof Ultrasound in Medicine and Biology. 2020 Feb;46(2):244-54
• dc.relation.projectID info:eu-repo/grantAgreement/ES/1PE/TIN2014-52923-R
• dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/764738
• dc.rights © Elsevier http://dx.doi.org/10.1016/j.ultrasmedbio.2019.10.013
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.subject.keyword Speckle trackingen
• dc.subject.keyword Myocardial strainen
• dc.subject.keyword Spatiotemporal analysisen
• dc.subject.keyword Reproducibilityen
• dc.subject.keyword Educational courseen
• dc.title Variability in the assessment of myocardial strain patterns: implications for adequate interpretationen
• dc.type info:eu-repo/semantics/article
• dc.type.version info:eu-repo/semantics/acceptedVersion