Correction of B (0)-induced geometric distortion variations in prospective motion correction for 7T MRI

摘要

Prospective 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 B (0) field variations. This work accounts for the B (0) field change due to subject movement, and proposes a method for correcting tissue magnetic susceptibility-related distortion in prospective motion correction.