T1 mapping of myocardium in rats using self-gated golden-angle acquisition

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dc.contributor.authorVitouš, Jiřícs
dc.contributor.authorJiřík, Radovancs
dc.contributor.authorStračina, Tiborcs
dc.contributor.authorHendrych, Michalcs
dc.contributor.authorNádeníček, Jaroslavcs
dc.contributor.authorMacíček, Ondřejcs
dc.contributor.authorTian, Yecs
dc.contributor.authorKrátká, Luciecs
dc.contributor.authorDražanová, Evacs
dc.contributor.authorNováková, Mariecs
dc.contributor.authorBabula, Petrcs
dc.contributor.authorPanovský, Romancs
dc.contributor.authorDiBella, Edwardcs
dc.contributor.authorStarčuk, Zenoncs
dc.coverage.issue1cs
dc.coverage.volume91cs
dc.date.issued2023-10-09cs
dc.description.abstractPurposeThe aim of this study is to design a method of myocardial T1 quantification in small laboratory animals and to investigate the effects of spatiotemporal regularization and the needed acquisition duration.MethodsWe propose a compressed-sensing approach to T1 quantification based on self-gated inversion-recovery radial two/three-dimensional (2D/3D) golden-angle stack-of-stars acquisition with image reconstruction performed using total-variation spatiotemporal regularization. The method was tested on a phantom and on a healthy rat, as well as on rats in a small myocardium-remodeling study.ResultsThe results showed a good match of the T1 estimates with the results obtained using the ground-truth method on a phantom and with the literature values for rats myocardium. The proposed 2D and 3D methods showed significant differences between normal and remodeling myocardium groups for acquisition lengths down to approximately 5 and 15 min, respectively.ConclusionsA new 2D and 3D method for quantification of myocardial T1 in rats was proposed. We have shown the capability of both techniques to distinguish between normal and remodeling myocardial tissue. We have shown the effects of image-reconstruction regularization weights and acquisition length on the T1 estimates.en
dc.formattextcs
dc.format.extent368-380cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMAGNETIC RESONANCE IN MEDICINE. 2023, vol. 91, issue 1, p. 368-380.en
dc.identifier.doi10.1002/mrm.29846cs
dc.identifier.issn0740-3194cs
dc.identifier.orcid0000-0002-9183-8794cs
dc.identifier.orcid0000-0003-2555-9428cs
dc.identifier.other184699cs
dc.identifier.researcheridF-6226-2012cs
dc.identifier.scopus6507144159cs
dc.identifier.urihttp://hdl.handle.net/11012/244166
dc.language.isoencs
dc.publisherJohn Wiley and Sonscs
dc.relation.ispartofMAGNETIC RESONANCE IN MEDICINEcs
dc.relation.urihttps://onlinelibrary.wiley.com/doi/10.1002/mrm.29846cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0740-3194/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectMRIen
dc.subjectretrospective gatingen
dc.subjectcardiacen
dc.subjectfibrosisen
dc.subjectremodelingen
dc.subjectT1en
dc.subjectquantificationen
dc.titleT1 mapping of myocardium in rats using self-gated golden-angle acquisitionen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-184699en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:39:57en
sync.item.modts2025.01.17 15:15:23en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav biomedicínského inženýrstvícs
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