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Motion correction in MR thermometry of abdominal organs: A comparison of the referenceless vs. the multibaseline approach

hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorDENIS DE SENNEVILLE, Baudouin
hal.structure.identifierImagerie moléculaire et fonctionnelle: de la physiologie à la thérapie
dc.contributor.authorROUJOL, Sébastien
hal.structure.identifierImagerie moléculaire et fonctionnelle: de la physiologie à la thérapie
dc.contributor.authorMOONEN, Chrit
hal.structure.identifierUniversity Medical Center [Utrecht] [UMCU]
dc.contributor.authorRIES, Mario
dc.date.accessioned2024-04-04T03:10:25Z
dc.date.available2024-04-04T03:10:25Z
dc.date.issued2010
dc.identifier.issn0740-3194
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/193687
dc.description.abstractEnReliable temperature and thermal-dose measurements using proton resonance frequency shift-based MR-thermometry AQ2 for MR-guided ablation of abdominal organs require a robust correction of artefacts induced by the target displacement through an inhomogeneous and time-variant magnetic field. Two correction approaches emerged recently as promising candidates to allow continuous real-time MR-thermometry under free-breathing conditions: The multibaseline correction method, which relies on a pre-recorded correction table allowing to correct for periodic phase changes, and the referenceless method, which depends on a background phase estimation in the target area based on the assumption of a smooth spatial variation of the phase across the organ. This study combines both methods with real-time in-plane motion correction to permit both temperature and thermal-dose calculations on the fly. Subsequently , the practical aspects of both methods are compared in two application scenarios, a radio frequency-ablation and a high-intensity focused ultrasound ablation. A hybrid approach is presented that exploits the strong points of both methods, allowing accurate and precise proton resonance frequency-thermometry measurements during periodical displacement, even in the presence of spontaneous motion and strong susceptibility variations in the target area.
dc.language.isoen
dc.publisherWiley
dc.subject.enartifacts
dc.subject.entechnique development
dc.subject.entechnical research
dc.subject.encorrection
dc.subject.ensusceptibility
dc.title.enMotion correction in MR thermometry of abdominal organs: A comparison of the referenceless vs. the multibaseline approach
dc.typeArticle de revue
dc.identifier.doi10.1002/mrm.22514
dc.subject.halSciences de l'ingénieur [physics]/Traitement du signal et de l'image
dc.subject.halSciences du Vivant [q-bio]/Ingénierie biomédicale/Imagerie
bordeaux.journalMagnetic Resonance in Medicine
bordeaux.page1373–1381
bordeaux.volume64
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue5
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01503909
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01503909v1
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