N/2 Ghosting Artifacts in a Radial 3D EPI Pulse Sequence

Sumeeth Vijay Jonathan¹, Parmede Vakil¹, Yong Jeong¹, Timothy J. Carroll¹, ²

We characterize and introduce a phase correction scheme for N/2 ghosting artifacts in 3D RAZIR, a new radial 3D GRE-EPI pulse sequence. Phase modulations between alternating echoes in our radial 3D EPI acquisition are dependent on radial view. Our phase correction scheme measures phase modulations for each radial view without the need for a separate reference scan. N/2 ghosting artifacts that occur in radial 3D multiecho acquisitions like 3D RAZIR can be corrected with our technique.