Self-Correction of B0 Drift and Trajectory Error in Alternating Unbalanced SSFP-FID and SSFP-ECHO (AUSFIDE)-Based 3D Transverse Relaxometry of the Human Brain.
PURPOSE The alternating unbalanced SSFP (AUSFIDE) pulse sequence, which consists of multi-echo trains of SSFP-FID and SSFP-ECHO modules, enables rapid estimation of R2 and R2', but is prone to errors from temporal drift of the main magnetic field (B0) and k-space trajectory mismatch. Here, we propose a self-correcting...