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Improvement of MRI-functional measurement with automatic movement correction in native and transplanted kidneys

hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorDENIS DE SENNEVILLE, Baudouin
hal.structure.identifierRadiology & Physics Unit, UCL Institute of Child Health
dc.contributor.authorMENDICHOVSZKY, Iosif
hal.structure.identifierImagerie moléculaire et fonctionnelle: de la physiologie à la thérapie
dc.contributor.authorROUJOL, Sébastien
dc.contributor.authorGORDON, Isky
hal.structure.identifierImagerie moléculaire et fonctionnelle: de la physiologie à la thérapie
dc.contributor.authorMOONEN, Chrit
hal.structure.identifierImagerie moléculaire et fonctionnelle: de la physiologie à la thérapie
dc.contributor.authorGRENIER, Nicolas
dc.date.accessioned2024-04-04T03:10:30Z
dc.date.available2024-04-04T03:10:30Z
dc.date.issued2008
dc.identifier.issn1053-1807
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/193690
dc.description.abstractEnPurpose: To improve 2D software for motion correction of renal dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and to evaluate its effect using the Patlak-Rutland model.Material and methods: A subpixel accurate method to correct for kidney motion during DCE-MRI was evaluated on native and transplanted kidneys using data from two different institutions with different magnets and protocols. The Patlak-Rutland model was used to calculate Glomerular Filtration Rate (GFR) on a voxel-by-voxel basis providing mean ( Kp) and uncertainty (Sigma_Kp) values for GFR. Results: In transplanted kidneys, average absolute variation of Kp was 6.4 %±4.8 % (max= 16.6 %). In native kidneys average absolute variation of was 12.11 % ±6.88 % (max= 25.6 %) for the right and 11.6 % ± 6 % (max= 20.8 %) for the left. Movement correction showed an average reduction of Sigma_Kp of 6.9 %±6.6 % (max= 21.4 %) in transplanted kidneys, 30.9 %±17.6 % (max= 60.8 %) for the right native kidney and 31.8 %±14 % (max= 55.3 %) for the left kidney. Conclusion: The movement correction algorithm showed improved uncertainty on GFR computation for both native and transplanted kidneys despite different spatial resolution from the different MRI systems and different levels of signal-to-noise ratios on DCE-MRI.
dc.language.isoen
dc.publisherWiley-Blackwell
dc.title.enImprovement of MRI-functional measurement with automatic movement correction in native and transplanted kidneys
dc.typeArticle de revue
dc.identifier.doi10.1002/jmri.21515
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.journalJournal of Magnetic Resonance Imaging
bordeaux.page970-978
bordeaux.volume28
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue4
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01503903
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01503903v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Magnetic%20Resonance%20Imaging&rft.date=2008&rft.volume=28&rft.issue=4&rft.spage=970-978&rft.epage=970-978&rft.eissn=1053-1807&rft.issn=1053-1807&rft.au=DENIS%20DE%20SENNEVILLE,%20Baudouin&MENDICHOVSZKY,%20Iosif&ROUJOL,%20S%C3%A9bastien&GORDON,%20Isky&MOONEN,%20Chrit&rft.genre=article


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