3-d residual eddy current field characterisation: applied to diffusion weighted magnetic resonance imaging.

Détails

ID Serval
serval:BIB_45CEA360C861
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
3-d residual eddy current field characterisation: applied to diffusion weighted magnetic resonance imaging.
Périodique
IEEE Transactions on Medical Imaging
Auteur(s)
O'Brien K., Daducci A., Kickler N., Lazeyras F., Gruetter R., Feiweier T., Krueger G.
ISSN
1558-254X (Electronic)
ISSN-L
0278-0062
Statut éditorial
Publié
Date de publication
2013
Peer-reviewed
Oui
Volume
32
Numéro
8
Pages
1515-1525
Langue
anglais
Notes
Publication types: Journal Article Publication Status: ppublish
Résumé
Clinical use of the Stejskal-Tanner diffusion weighted images is hampered by the geometric distortions that result from the large residual 3-D eddy current field induced. In this work, we aimed to predict, using linear response theory, the residual 3-D eddy current field required for geometric distortion correction based on phantom eddy current field measurements. The predicted 3-D eddy current field induced by the diffusion-weighting gradients was able to reduce the root mean square error of the residual eddy current field to ~1 Hz. The model's performance was tested on diffusion weighted images of four normal volunteers, following distortion correction, the quality of the Stejskal-Tanner diffusion-weighted images was found to have comparable quality to image registration based corrections (FSL) at low b-values. Unlike registration techniques the correction was not hindered by low SNR at high b-values, and results in improved image quality relative to FSL. Characterization of the 3-D eddy current field with linear response theory enables the prediction of the 3-D eddy current field required to correct eddy current induced geometric distortions for a wide range of clinical and high b-value protocols.
Pubmed
Web of science
Open Access
Oui
Création de la notice
25/06/2013 8:18
Dernière modification de la notice
08/05/2019 17:54
Données d'usage