Afficher la notice abrégée

dc.rights.licenseopenen_US
dc.contributor.authorMARHABAIE, Sina
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorDELCEY, Marylene
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorEL HAMRANI, Dounia
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorVAILLANT, Fanny
dc.contributor.authorGINEFRI, Jean-Christophe
hal.structure.identifierCentre de résonance magnétique des systèmes biologiques [CRMSB]
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorOZENNE, Valery
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorABELL, Emma
dc.contributor.authorPOIRIER-QUINOT, Marie
dc.contributor.authorQUESSON, Bruno
dc.date.accessioned2023-11-16T10:49:25Z
dc.date.available2023-11-16T10:49:25Z
dc.date.issued2023-10-30
dc.identifier.issn2297-055Xen_US
dc.identifier.urioai:crossref.org:10.3389/fcvm.2023.1249572
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/184806
dc.description.abstractEnIntroductionInterventional cardiac MRI in the context of the treatment of cardiac arrhythmia requires submillimeter image resolution to precisely characterize the cardiac substrate and guide the catheter-based ablation procedure in real-time. Conventional MRI receiver coils positioned on the thorax provide insufficient signal-to-noise ratio (SNR) and spatial selectivity to satisfy these constraints.MethodsA small circular MRI receiver coil was developed and evaluated under different experimental conditions, including high-resolution MRI anatomical and thermometric imaging at 1.5 T. From the perspective of developing a therapeutic MR-compatible catheter equipped with a receiver coil, we also propose alternative remote active detuning techniques of the receiver coil using one or two cables. Theoretical details are presented, as well as simulations and experimental validation.ResultsAnatomical images of the left ventricle at 170 µm in-plane resolution are provided on ex vivo beating heart from swine using a 2 cm circular receiver coil. Taking advantage of the increase of SNR at its vicinity (up to 35 fold compared to conventional receiver coils), real-time MR-temperature imaging can reach an uncertainty below 0.1°C at the submillimetric spatial resolution. Remote active detuning using two cables has similar decoupling efficiency to conventional on-site decoupling, at the cost of an acceptable decrease in the resulting SNR.DiscussionThis study shows the potential of small dimension surface coils for minimally invasive therapy of cardiac arrhythmia intraoperatively guided by MRI. The proposed remote decoupling approaches may simplify the construction process and reduce the cost of such single-use devices.
dc.description.sponsorshipThermometrie cardiaque haute résolution sur une IRM clinique en utilisant des antennes intracardiaquesen_US
dc.description.sponsorshipL'Institut de Rythmologie et modélisation Cardiaque - ANR-10-IAHU-0004en_US
dc.description.sponsorshipFrance Life Imaging - ANR-11-INBS-0006en_US
dc.language.isoENen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.sourcecrossref
dc.subject.enMRI
dc.subject.enIntervention
dc.subject.enCoil design
dc.subject.enMR-thermometry
dc.subject.enHeart
dc.subject.enDetuning
dc.subject.enCatheter
dc.title.enRemotely detuned receiver coil for high-resolution interventional cardiac magnetic resonance imaging
dc.title.alternativeFront Cardiovasc Meden_US
dc.typeArticle de revueen_US
dc.identifier.doi10.3389/fcvm.2023.1249572en_US
dc.subject.halSciences du Vivant [q-bio]en_US
dc.subject.halSciences de l'ingénieur [physics]en_US
bordeaux.journalFrontiers in Cardiovascular Medicineen_US
bordeaux.page1249572en_US
bordeaux.volume10en_US
bordeaux.hal.laboratoriesCentre de Résonance Magnétique des Systèmes Biologiques (CRMSB) - UMR 5536en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.institutionINSERM
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04288962
hal.version1
hal.date.transferred2023-11-16T10:49:28Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Cardiovascular%20Medicine&rft.date=2023-10-30&rft.volume=10&rft.spage=1249572&rft.epage=1249572&rft.eissn=2297-055X&rft.issn=2297-055X&rft.au=MARHABAIE,%20Sina&DELCEY,%20Marylene&EL%20HAMRANI,%20Dounia&VAILLANT,%20Fanny&GINEFRI,%20Jean-Christophe&rft.genre=article


Fichier(s) constituant ce document

Thumbnail
Thumbnail

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

Afficher la notice abrégée