PCA-based magnetic field modeling: Application for on-line MR temperature monitoring

G. Maclair, B. Denis De Senneville, M. Ries, B. Quesson, P. Desbarats, J. Benois-Pineau, C. T.W. Moonen

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdragepeer review

7 Citaten (Scopus)

Samenvatting

Magnetic Resonance (MR) temperature mapping can be used to monitor temperature changes during minimally invasive thermal therapies. However, MR-thermometry contains artefacts caused by phase errors induced by organ motion in inhomogeneous magnetic fields. This paper proposes a novel correction strategy based on a Principal Component Analysis (PCA) to estimate magnetic field perturbation assuming a linear magnetic field variation with organ displacement. The correction method described in this paper consists of two steps : a magnetic field perturbation model is computed in a learning step; subsequently, during the intervention, this model is used to reconstruct the magnetic field perturbation corresponding to the actual organ position which in turns allow computation of motion corrected thermal maps.

Originele taal-2Engels
TitelMedical Image Computing and Computer-Assisted Intervention - MICCAI 2007 - 10th International Conference, Proceedings
UitgeverijSpringer Verlag
Pagina's411-419
Aantal pagina's9
UitgavePART 2
ISBN van geprinte versie9783540757580
DOI's
StatusGepubliceerd - 2007
Extern gepubliceerdJa
Evenement10th International Conference on Medical Imaging and Computer-Assisted Intervention, MICCAI 2007 - Brisbane, Australië
Duur: 29 okt. 20072 nov. 2007

Publicatie series

NaamLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NummerPART 2
Volume4792 LNCS
ISSN van geprinte versie0302-9743
ISSN van elektronische versie1611-3349

Congres

Congres10th International Conference on Medical Imaging and Computer-Assisted Intervention, MICCAI 2007
Land/RegioAustralië
StadBrisbane
Periode29/10/072/11/07

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