3D radial
acquisitions are prone to gradient delay and phase artifacts, which need to be
corrected for. Ideally, the phase can be retrospectively corrected for by
assuming the same phase in k-space
center where all projections meet. However, if data are affected by gradient
delays, profiles are shifted at varying angles and might not intersect at all. Here,
a simple to apply, novel phase correction method is presented in which the
changed trajectory due to gradient delays is incorporated into 3D phase
correction. It was shown that artifacts are reduced by 12% compared to only
gradient delay corrections.
