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Real-time adaptive methods for treatment of mobile organs by MRI-controlled high-intensity focused ultrasound

hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorDENIS DE SENNEVILLE, Baudouin
hal.structure.identifierImagerie moléculaire et fonctionnelle
dc.contributor.authorMOUGENOT, Charles
hal.structure.identifierUniversity Medical Center [Utrecht] [UMCU]
dc.contributor.authorMOONEN, Chrit
dc.date.accessioned2024-04-04T03:10:33Z
dc.date.available2024-04-04T03:10:33Z
dc.date.issued2007
dc.identifier.issn0740-3194
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/193694
dc.description.abstractEnFocused ultrasound is a unique and non-invasive technique for the local deposition of thermal energy deep inside the body. MRI guidance offers the additional benefits of excellent target visualization and continuous temperature mapping. However, treating a moving target poses severe problems because 1) motion related thermometry artifacts must be corrected, 2) the ultrasound focal point must be relocated according to the target displacement. In this paper, a complete MRI compatible High Intensity Focused Ultrasound (HIFU) system is described together with adaptive methods allowing continuous MR thermometry and therapeutic ultrasound with real-time tracking of a moving target, on-line motion correction ofthe thermometry maps, and regional temperature control based on the Proportional, Integral, and Derivative method. The hardware is based on a 256 element Phased-Array transducer with rapid, electronic, displacement of the focal point. The exact location of the target during ultrasound firing is anticipated using automatic analysis of periodic motions. The methods were tested with moving phantoms undergoing either rigid body or elastic periodical motions. The results show accurate tracking of the focal point. Focal and regional temperature control is demonstrated with a performance, similar to that obtained with stationary phantoms.
dc.language.isoen
dc.publisherWiley
dc.title.enReal-time adaptive methods for treatment of mobile organs by MRI-controlled high-intensity focused ultrasound
dc.typeArticle de revue
dc.identifier.doi10.1002/mrm.21124
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.page319-330
bordeaux.volume57
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue2
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01503877
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01503877v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Magnetic%20Resonance%20in%20Medicine&rft.date=2007&rft.volume=57&rft.issue=2&rft.spage=319-330&rft.epage=319-330&rft.eissn=0740-3194&rft.issn=0740-3194&rft.au=DENIS%20DE%20SENNEVILLE,%20Baudouin&MOUGENOT,%20Charles&MOONEN,%20Chrit&rft.genre=article


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