Multi Echo Spiral Imaging : Optimized K-Space Trajectories for T2* Quantification.

Nicolas Pannetier^1,2, Mohamed Tachrount^1,2, Christoph Segebarth^1,2, Emmanuel Louis Barbier^1,2, Laurent Lamalle³

Effective and theoretical k-space trajectories differ due to eddy currents or gradient hardware imperfections. In this study we propose a fast two steps approach to optimized k-space trajectories in multi-echo spiral imaging. Once optimized, images were acquired on rat brain and T2* map was estimated.