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Stability of real-time MR temperature mapping in healthy and diseased human liver

hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
dc.contributor.authorWEIDENSTEINER, Claudia
dc.contributor.authorKERIOUI, Noureddine
hal.structure.identifierIHU-LIRYC
dc.contributor.authorQUESSON, Bruno
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorDENIS DE SENNEVILLE, Baudouin
hal.structure.identifierHôpital Saint-André
dc.contributor.authorTRILLAUD, Hervé
hal.structure.identifierUniversity Medical Center [Utrecht] [UMCU]
dc.contributor.authorMOONEN, Chrit
dc.date.accessioned2024-04-04T03:10:35Z
dc.date.available2024-04-04T03:10:35Z
dc.date.issued2004
dc.identifier.issn1053-1807
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/193696
dc.description.abstractEnPurpose: To determine the stability and quality of MR temperature mapping using the proton resonance frequency (PRF) method in the liver of hepatic tumor patients.Material and Methods: The standard deviation of a series of temperature maps was determined in 30 patients (21 cirrhotic livers with carcinoma, 9 non-cirrhotic livers with metastasis or angioma) and in 5 volunteers at normal body temperature under free breathing. A respiratory-gated segmented EPI sequence (3 slices in 1 expiration phase) was performed with SENSE acceleration on a 1.5 T scanner. Motion corrupted images were identified by calculation of the cross-correlation coefficient and discarded.Results: A T 2* range of 10-33 ms was found with especially low values in advanced cirrhotic livers. The mean temperature standard deviation in patients was 2.3°C (range 1.5-5.0°C). The stability in healthy livers was slightly better than that in cirrhotic livers, and it was higher in the right than in the left liver. The gaiting failed in 4 % of the images when the respiratory cycle was irregular, leading to motion artifacts and errors in the temperature maps.Conclusion: The achieved temperature stability and image quality makes real-time quantitative monitoring of thermal ablation of liver tumors feasible on a clinical scanner.
dc.language.isoen
dc.publisherWiley-Blackwell
dc.title.enStability of real-time MR temperature mapping in healthy and diseased human liver
dc.typeArticle de revue
dc.identifier.doi10.1002/jmri.20019
dc.subject.halSciences de l'ingénieur [physics]/Traitement du signal et de l'image
dc.subject.halSciences du Vivant [q-bio]/Ingénierie biomédicale/Imagerie
dc.subject.halSciences du Vivant [q-bio]/Médecine humaine et pathologie/Hépatologie et Gastroentérologie
bordeaux.journalJournal of Magnetic Resonance Imaging
bordeaux.page438-446
bordeaux.volume19
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-01503864
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01503864v1
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