Prospective motion correction with FID-triggered image navigators

Détails

ID Serval
serval:BIB_9133F59D83B6
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Collection
Publications
Titre
Prospective motion correction with FID-triggered image navigators
Titre de la conférence
ISMRM 23rd Annual Meeting & Exhibition
Auteur(s)
Babayeva Maryna, Falkovskiy Pavel, Hilbert Tom, Bonnier Guillaume, Meuli Reto, Thiran Jean-Philippe, Gruetter Rolf, Krüger Gunnar, Kober Tobias
Adresse
30 May - 05 June 2015; Toronto, Ontario, Canada
Statut éditorial
Publié
Date de publication
2015
Langue
anglais
Notes
EPFL-CONF-207098
Résumé
In this work, we propose a method for prospective motion correction in MRI using a novel image navigator module, which is triggered by a free induction decay (FID) navigator. Only when motion occurs, the image navigator is run and new positional information is obtained through image registration. The image navigator was specifically designed to match the impact on the magnetization and the acoustic noise of the host sequence. This detection-correction scheme was implemented for an MP-RAGE sequence and 5 healthy volunteers were scanned at 3T while performing various head movements. The correction performance was demonstrated through automated brain segmentation and an image quality index whose results are sensitive to motion artifacts.
Mots-clé
MRI, motion correction, FID-navigator
Création de la notice
27/11/2015 15:22
Dernière modification de la notice
03/03/2018 19:27
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