Meeting Banner
Abstract #1613

Evaluation of 3D SPARKLING readout for Sodium UTE MRI at ultra-high magnetic field

Renata Porciuncula Baptista1, Alexandre Vignaud1, Chaithya G R1,2, Guillaume Daval-Frérot1,2, Franck Mauconduit1, Mathieu Naudin3, Marc Lapert4, Remy Guillevin3, Philippe Ciuciu1,2, Cécile Rabrait-Lerman1, and Fawzi Boumezbeur1
1NeuroSpin, Joliot, CEA, CNRS, University Paris-Saclay, Gif-sur-Yvette, France, 2Inria, Parietal, Université Paris-Saclay, Palaiseau, France, 3University Hospital Centre Poitiers, DACTIM-MIS, Poitiers, France, 4Siemens Healthcare SAS, Saint-Denis, France


Quantitative 23Na MRI provides useful information about brain tissue homeostasis. Most sequences use deterministic non-Cartesian 3D trajectories such as TPI. However, stochastic strategies such as SPARKLING could improve the coverage of k-space. This study evaluates the advantages of SPARKLING versus TPI. From in vivo datasets at 7T, we determined that undersampled SPARKLING acquisitions outperform TPI for (8 mm)3 resolution with a birdcage coil or for (4 mm)3 with a 32-channel coil. Through extrapolation of these results, we predict that at 11.7T/32-channel, 23Na MRI data could be acquired in 90s at (3 mm)3, which could be interesting for sodium fMRI imaging.

This abstract and the presentation materials are available to members only; a login is required.

Join Here