CONTRAST ENHANCEMENT OF MAGNETIZATION PREPARED STEADY STATE SEQUENCE: AN OPTIMAL CONTROL FRAMEWORK - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2021

CONTRAST ENHANCEMENT OF MAGNETIZATION PREPARED STEADY STATE SEQUENCE: AN OPTIMAL CONTROL FRAMEWORK

Résumé

Optimal control in MRI has demonstrated its potential in the design of magnetization preparation in order to enhance relaxation based contrast. However, previous studies require full magnetization recovery between each TR, which induces long acquisition times and restricts its use to specific sequences. Here, a generic optimal control framework that considers a longitudinal steady state is introduced, and applied to a MP-RAGE sequence. In vitro and in vivo (rat brain) experiments validate the improvement of the contrast-to-noise ratio per unit of time when compared with an inversion-recovery preparation.

Mots clés

Fichier principal
Vignette du fichier
Abstract ISMRM 2021 Vernier.pdf (981.51 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03213140 , version 1 (30-04-2021)

Identifiants

  • HAL Id : hal-03213140 , version 1

Citer

Benoît Vernier, Eric Van Reeth, Frank Pilleul, Olivier Beuf, Hélène Ratiney. CONTRAST ENHANCEMENT OF MAGNETIZATION PREPARED STEADY STATE SEQUENCE: AN OPTIMAL CONTROL FRAMEWORK. ISMRM, May 2021, Vancouver (online), Canada. ⟨hal-03213140⟩
48 Consultations
37 Téléchargements

Partager

Gmail Facebook X LinkedIn More