Free-running 3D whole-heart T<sub>1</sub> and T<sub>2</sub> mapping and cine MRI using low-rank reconstruction with non-rigid cardiac motion correction

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dc.contributor.authorPhair, Andrew
dc.contributor.authorCruz, Gastao
dc.contributor.authorQi, Haikun
dc.contributor.authorBotnar, Rene M.
dc.contributor.authorPrieto, Claudia
dc.date.accessioned2025-01-20T20:20:46Z
dc.date.available2025-01-20T20:20:46Z
dc.date.issued2023
dc.description.abstractPurpose: To introduce non-rigid cardiac motion correction into a novel free-running framework for the simultaneous acquisition of 3D whole-heart myocardial T-1 and T-2 maps and cine images, enabling a similar to 3-min scan.
dc.description.abstractMethods: Datawere acquired using a free-running 3D golden-angle radial readout interleaved with inversion recovery and T-2-preparation pulses. After correction for translational respiratorymotion, non-rigid cardiac-motion-corrected reconstruction with dictionary-based low-rank compression and patch-based regularization enabled 3D whole-heart T-1 and T-2 mapping at any given cardiac phase aswell aswhole-heart cardiac cine imaging. The frameworkwas validated and compared with established methods in 11 healthy subjects.
dc.description.abstractResults: Good quality 3D T-1 and T-2 maps and cine images were reconstructed for all subjects. Septal T-1 values using the proposed approach (1200 +/- 50 ms) were higher than those from a 2D MOLLI sequence (1063 +/- 33 ms), which is known to underestimate T-1, while T-2 values from the proposed approach (51 +/- 4 ms) were in good agreement with those from a 2D GraSE sequence (51 +/- 2 ms).
dc.description.abstractConclusion: The proposed technique provides 3D T-1 and T-2 maps and cine images with isotropic spatial resolution in a single similar to 3.3-min scan.
dc.fuente.origenWOS
dc.identifier.doi10.1002/mrm.29449
dc.identifier.eissn1522-2594
dc.identifier.issn0740-3194
dc.identifier.urihttps://doi.org/10.1002/mrm.29449
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92595
dc.identifier.wosidWOS:000863914300001
dc.issue.numero1
dc.language.isoen
dc.pagina.final232
dc.pagina.inicio217
dc.revistaMagnetic resonance in medicine
dc.rightsacceso restringido
dc.subject3D radial
dc.subjectcine imaging
dc.subjectfree-running
dc.subjectjoint T-1/T-2 mapping
dc.subjectlow-rank inversion
dc.subjectnon-rigid motion correction
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleFree-running 3D whole-heart T<sub>1</sub> and T<sub>2</sub> mapping and cine MRI using low-rank reconstruction with non-rigid cardiac motion correction
dc.typeartículo
dc.volumen89
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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