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Whole‐brain T 2 mapping with radial sampling and retrospective motion correction at 3T

dc.rights.licenseopenen_US
hal.structure.identifierCentre de résonance magnétique des systèmes biologiques [CRMSB]
dc.contributor.authorCORBIN, Nadège
hal.structure.identifierCentre de résonance magnétique des systèmes biologiques [CRMSB]
dc.contributor.authorTROTIER, Aurelien
hal.structure.identifierBio-imagerie de Bordeaux
dc.contributor.authorANANDRA, Serge
hal.structure.identifierCentre de résonance magnétique des systèmes biologiques [CRMSB]
dc.contributor.authorKADALIE, Emile
hal.structure.identifierBio-imagerie de Bordeaux
dc.contributor.authorDALLET, Laurence
hal.structure.identifierCentre de résonance magnétique des systèmes biologiques [CRMSB]
dc.contributor.authorMIRAUX, Sylvain
IDREF: 150967047
hal.structure.identifierCentre de résonance magnétique des systèmes biologiques [CRMSB]
dc.contributor.authorRIBOT, Emeline
dc.date.accessioned2024-11-13T15:08:31Z
dc.date.available2024-11-13T15:08:31Z
dc.date.issued2024-10-04
dc.identifier.issn0740-3194en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/203250
dc.description.abstractEnPurpose: Several barriers prevent the use of whole‐brain T2 mapping in routine use despite increasing interest in this parameter. One of the main barriers is the long scan time resulting in patient discomfort and motion corrupted data. To address this challenge, a method for accurate whole‐brain T2 mapping with a limited acquisition time and motion correction capabilities is investigated.Methods: A 3D radial multi‐echo spin‐echo sequence was implemented with optimized sampling trajectory enabling the estimation of intra‐scan motion, subsequently used to correct the raw data. Motion corrected echo images are then reconstructed with linear subspace constrained reconstruction. Experiments were carried out on phantom and volunteers at 3T to evaluate the accuracy of the T2 estimation, the sensitivity to lesions and the efficiency of the correction on motion corrupted data.Results: Whole‐brain T2 mapping acquired in less than 7 min enabled the depiction of lesions in the white matter with longer T2. Data retrospectively corrupted with typical motion traces of pediatric patients highly benefited from the motion correction by reducing the error in T2 estimates within the lesions. All datasets acquired on seven volunteers, with deliberate motion, also showed that motion corrupted T2 maps could be improved with the retrospective motion correction both at the voxel level and the structure level.Conclusion: A whole‐brain T2 mapping sequence with retrospective intra‐scan motion correction and reasonable acquisition time is proposed. The method necessitates advanced iterative reconstruction strategies but no additional navigator, external device, or increased scan time is required.
dc.language.isoENen_US
dc.subject.enT2 mapping
dc.subject.enMotion correction
dc.subject.enRadial sampling
dc.title.enWhole‐brain T 2 mapping with radial sampling and retrospective motion correction at 3T
dc.typeArticle de revueen_US
dc.identifier.doi10.1002/mrm.30328en_US
dc.subject.halSciences du Vivant [q-bio]/Ingénierie biomédicale/Imagerieen_US
dc.subject.halSciences du Vivant [q-bio]/Neurosciences [q-bio.NC]en_US
bordeaux.journalMagnetic Resonance in Medicineen_US
bordeaux.hal.laboratoriesCentre de Résonance Magnétique des Systèmes Biologiques (CRMSB) - UMR 5536en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-04765925
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Magnetic%20Resonance%20in%20Medicine&rft.date=2024-10-04&rft.eissn=0740-3194&rft.issn=0740-3194&rft.au=CORBIN,%20Nad%C3%A8ge&TROTIER,%20Aurelien&ANANDRA,%20Serge&KADALIE,%20Emile&DALLET,%20Laurence&rft.genre=article


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