Arthur Coste1, Nicolas Chauffert1,2, Alexandre Vignaud1, Philippe Ciuciu1,2, Fawzi Boumezbeur1, Pierre Weiss3, Sandro Romanzetti4, Denis Le Bihan1, and Cécile Lerman1
1MR Imaging and Spectroscopy Unit, NeuroSpin, Gif sur Yvette, France, 2Parietal, INRIA Saclay, Saclay, France, 3Institut des Technologies Avancées du Vivant, Toulouse, France, 4University Clinic RWTH Aachen, Aachen, Germany
This work illustrates the application of a wavelet based least square
regularized image reconstruction for non-Cartesian MR sampling trajectories in
the framework of low concentration Phosphorus Imaging.
We compared performances between 3D Cartesian Fast Imaging with Steady-state free
Precession (FISP) and the TPI (FISP)
sequence and show that in equivalent acquisition durations we are able to
produce better images with the TPI sequence. Prospective sub-sampling was also
performed and results open exciting possibilities to reduce acquisition time
without impacting image quality for non-proton MRI.