Paper Info
Title
PCA-based magnetic field modeling: application for on-line MR temperature monitoring.
Abstract
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.
Year
DOI
Venue
2007
10.1007/978-3-540-75759-7_50
MICCAI (2)
Keywords
Field
DocType
minimally invasive thermal therapy,magnetic field perturbation model,linear magnetic field variation,inhomogeneous magnetic field,pca-based magnetic field modeling,correction method,organ motion,on-line mr temperature monitoring,magnetic field perturbation,novel correction strategy,organ displacement,actual organ position,magnetic resonance,principal component analysis,magnetic field
Computer vision,Magnetic field,Thermal,Mathematical analysis,Organ Motion,Computer science,Temperature mapping,Artificial intelligence,Principal component analysis,Perturbation (astronomy),Computation,Magnetic resonance imaging
Conference
Volume
Issue
ISSN
10
Pt 2
0302-9743
ISBN
Citations 
PageRank 
3-540-75758-9
1
0.46
References 
Authors
1
7
Name
Order
Citations
PageRank
G Maclair1113.00
Baudouin Denis de Senneville2228.12
Mario Ries35511.04
B Quesson410.46
P Desbarats572.34
J. Benois-Pineau610312.35
C T W Moonen710.46