Afficher la notice abrégée

hal.structure.identifierImagerie moléculaire et fonctionnelle: de la physiologie à la thérapie
dc.contributor.authorROUJOL, Sébastien
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
dc.contributor.authorBENOIS-PINEAU, Jenny
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorDENIS DE SENNEVILLE, Baudouin
hal.structure.identifierUniversity Medical Center [Utrecht] [UMCU]
dc.contributor.authorRIES, Mario
hal.structure.identifierImagerie moléculaire et fonctionnelle: de la physiologie à la thérapie
dc.contributor.authorQUESSON, Bruno
hal.structure.identifierImagerie moléculaire et fonctionnelle: de la physiologie à la thérapie
dc.contributor.authorMOONEN, Chrit
dc.date.accessioned2024-04-04T03:09:16Z
dc.date.available2024-04-04T03:09:16Z
dc.date.issued2012
dc.identifier.issn1089-7771
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/193592
dc.description.abstractEnReal time magnetic resonance (MR) imaging is a promising tool for image-guided interventions. For applications such as thermotherapy on moving organs, a fine image-based compensation of motion is required in real time to allow quantitative analysis, retro-control of the interventional device, or determination of the therapy endpoint. Since interventional procedures are usually restricted to a part of the organ/tissue under study, reduced FOV imaging represents a promising way to improve spatial and / or temporal resolution. However, it introduces new challenges for the target motion estimation since structures near the target may appear transiently due to the respiratory motion and the limited spatial coverage. In this paper, a new image based motion estimation method is proposed combining a global motion estimation with a novel optical flow approach extending the initial Horn & Schunck (H&S) method by an additional regularization term. This term integrates the displacement of physiological landmarks, which are obtained in a preparation step by pattern matching into the variational formulation of the optical flow problem. A smooth regulation of the constraint point influences is achieved using a spatial weighting function. The method was compared to the same registration pipeline employing the H&S approach. A first evaluation was performed on synthetic dataset where the accuracy of the motion estimated with the H&S method was improved by a factor of 2 using the proposed approach. An in vivo study was then realized on both the heart and the kidney of twelve volunteers. Compared to the H&S approach, a significant improvement (p<0.05) of the DICE similarity criterion computed between the reference and the registered organ positions was achieved.
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers
dc.subject.enImage registration
dc.subject.enMotion analysis
dc.subject.enBiomedical image processing
dc.subject.enMagnetic resonance imaging
dc.title.enRobust Real-Time-Constrained Estimation of Respiratory Motion for Interventional MRI on Mobile Organs
dc.typeArticle de revue
dc.identifier.doi10.1109/TITB.2012.2190366
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.journalIEEE Transactions on Information Technology in Biomedicine
bordeaux.page365-374
bordeaux.volume16
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue3
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01578191
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01578191v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=IEEE%20Transactions%20on%20Information%20Technology%20in%20Biomedicine&amp;rft.date=2012&amp;rft.volume=16&amp;rft.issue=3&amp;rft.spage=365-374&amp;rft.epage=365-374&amp;rft.eissn=1089-7771&amp;rft.issn=1089-7771&amp;rft.au=ROUJOL,%20S%C3%A9bastien&amp;BENOIS-PINEAU,%20Jenny&amp;DENIS%20DE%20SENNEVILLE,%20Baudouin&amp;RIES,%20Mario&amp;QUESSON,%20Bruno&amp;rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée