Correction of B0-induced geometric distortion variations in prospective motion correction for 7T MRI

摘要

ObjectiveProspective motion correction can effectively fix the imaging volume of interest. For large motion, this can lead to relative motion of coil sensitivities, distortions associated with imaging gradients and B0 field variations. This work accounts for the B0 field change due to subject movement, and proposes a method for correcting tissue magnetic susceptibility-related distortion in prospective motion correction.