Varying undersampling directions for accelerating multiple acquisition magnetic resonance imaging

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dc.contributor.authorKim, Ki Hwanko
dc.contributor.authorSeo, Sunghunko
dc.contributor.authorDo, Won-Joonko
dc.contributor.authorLuu, Huan Minhko
dc.contributor.authorPark, Sung-Hongko
dc.date.accessioned2022-04-13T06:50:27Z-
dc.date.available2022-04-13T06:50:27Z-
dc.date.created2021-06-21-
dc.date.issued2022-04-
dc.identifier.citationNMR IN BIOMEDICINE, v.35, no.4-
dc.identifier.issn0952-3480-
dc.identifier.urihttp://hdl.handle.net/10203/292581-
dc.description.abstractIn this study, we propose a new sampling strategy for efficiently accelerating multiple acquisition MRI. The new sampling strategy is to obtain data along different phase-encoding directions across multiple acquisitions. The proposed sampling strategy was evaluated in multicontrast MR imaging (T1, T2, proton density) and multiple phase-cycled (PC) balanced steady-state free precession (bSSFP) imaging by using convolutional neural networks with central and random sampling patterns. In vivo MRI acquisitions as well as a public database were used to test the concept. Based on both visual inspection and quantitative analysis, the proposed sampling strategy showed better performance than sampling along the same phase-encoding direction in both multicontrast MR imaging and multiple PC-bSSFP imaging, regardless of sampling pattern (central, random) or datasets (public, retrospective and prospective in vivo). For the prospective in vivo applications, acceleration was performed by sampling along different phase-encoding directions at the time of acquisition with a conventional rectangular field of view, which demonstrated the advantage of the proposed sampling strategy in the real environment. Preliminary trials on compressed sensing (CS) also demonstrated improvement of CS with the proposed idea. Sampling along different phase-encoding directions across multiple acquisitions is advantageous for accelerating multiacquisition MRI, irrespective of sampling pattern or datasets, with further improvement through transfer learning.-
dc.languageEnglish-
dc.publisherWILEY-
dc.titleVarying undersampling directions for accelerating multiple acquisition magnetic resonance imaging-
dc.typeArticle-
dc.identifier.wosid000659710100001-
dc.identifier.scopusid2-s2.0-85107489343-
dc.type.rimsART-
dc.citation.volume35-
dc.citation.issue4-
dc.citation.publicationnameNMR IN BIOMEDICINE-
dc.identifier.doi10.1002/nbm.4572-
dc.contributor.localauthorPark, Sung-Hong-
dc.contributor.nonIdAuthorKim, Ki Hwan-
dc.contributor.nonIdAuthorLuu, Huan Minh-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorbalanced steady-state free precession-
dc.subject.keywordAuthorcompressed sensing-
dc.subject.keywordAuthordeep learning-
dc.subject.keywordAuthormulticontrast MRI-
dc.subject.keywordAuthorphase-encoding dimension-
dc.subject.keywordAuthorsampling pattern-
dc.subject.keywordPlusCOMPRESSED-SENSING RECONSTRUCTION-
dc.subject.keywordPlusARTIFACTS-
dc.subject.keywordPlusMRI-
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