Magnetic Resonance in Medicine • Vol 75 • No 3
Accelerated and motion‐robust in vivo <scp>T</scp><sub>2</sub> mapping from radially undersampled data using bloch‐simulation‐based iterative reconstruction
April 2015 • Noam Ben‐Eliezer, Daniel K. Sodickson, Timothy M. Shepherd, Graham C. Wiggins, Kai Tobias Block
Purpose Development of a quantitative transverse relaxation time (T 2 )‐mapping platform that operates at clinically feasible timescales by employing advanced image reconstruction of radially undersampled multi spin‐echo (MSE) datasets. Methods Data was acquired on phantom and in vivo at 3 Tesla using MSE protocols employing radial k‐space sampling trajectories. In order to overcome the nontrivial spin evolution associated with MSE protocols, a numerical signal model was precalculated based on Bloch simulations of…