Factorized sensitivity estimation for artifact suppression in phase‐cycled bSSFP MRI

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buir.contributor.authorBıyık, Erdem
buir.contributor.authorKeskin, Kübra
buir.contributor.authorDar, Salman Ul Hassan
buir.contributor.authorKoç, Aykut
buir.contributor.authorÇukur, Tolga
dc.citation.epage14en_US
dc.citation.issueNumber4en_US
dc.citation.spage1en_US
dc.citation.volumeNumber33en_US
dc.contributor.authorBıyık, Erdem
dc.contributor.authorKeskin, Kübra
dc.contributor.authorDar, Salman Ul Hassan
dc.contributor.authorKoç, Aykut
dc.contributor.authorÇukur, Tolga
dc.date.accessioned2021-03-05T17:36:07Z
dc.date.available2021-03-05T17:36:07Z
dc.date.issued2020
dc.departmentAysel Sabuncu Brain Research Center (BAM)en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInterdisciplinary Program in Neuroscience (NEUROSCIENCE)en_US
dc.departmentNational Magnetic Resonance Research Center (UMRAM)en_US
dc.description.abstractObjective: Balanced steady‐state free precession (bSSFP) imaging suffers from banding artifacts in the presence of magnetic field inhomogeneity. The purpose of this study is to identify an efficient strategy to reconstruct banding‐free bSSFP images from multi‐coil multi‐acquisition datasets. Method: Previous techniques either assume that a naïve coil‐combination is performed a priori resulting in suboptimal artifact suppression, or that artifact suppression is performed for each coil separately at the expense of significant computational burden. Here we propose a tailored method that factorizes the estimation of coil and bSSFP sensitivity profiles for improved accuracy and/or speed. Results: In vivo experiments show that the proposed method outperforms naïve coil‐combination and coil‐by‐coil processing in terms of both reconstruction quality and time. Conclusion: The proposed method enables computationally efficient artifact suppression for phase‐cycled bSSFP imaging with modern coil arrays. Rapid imaging applications can efficiently benefit from the improved robustness of bSSFP imaging against field inhomogeneity.en_US
dc.embargo.release2021-04-01
dc.identifier.doi10.1002/nbm.4228en_US
dc.identifier.issn0952-3480
dc.identifier.urihttp://hdl.handle.net/11693/75856
dc.language.isoEnglishen_US
dc.publisherWileyen_US
dc.relation.isversionofhttps://dx.doi.org/10.1002/nbm.4228en_US
dc.source.titleNMR in Biomedicineen_US
dc.subjectBalanced SSFPen_US
dc.subjectBanding artifacten_US
dc.subjectArtifact suppressionen_US
dc.subjectCoil combinationen_US
dc.subjectSensitivity estimationen_US
dc.subjectJoint reconstructionen_US
dc.titleFactorized sensitivity estimation for artifact suppression in phase‐cycled bSSFP MRIen_US
dc.typeArticleen_US

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