Jennifer Andrea McNab1, Daniel Gallichan1, Matthew D. Robson2, Karla L. Miller1
1Clinical Neurology, Oxford University, Oxford, UK; 2Cardiology, Oxford University Centre for Clinical Magnetic Resonance Research, Oxford, UK
2D segmented DWI with motion correction can improve image quality and in-plane resolution, relative to conventional single-shot EPI. The problems associated with thin slice-selection, however, render a 3D segmented pulse sequence the only way to achieve very small isotropic voxels. One challenge with 3D segmented DWI is the time-prohibitive nature of acquiring a 3D navigator echo along with each k-space segment. Here we present a novel approach to this problem with a fully 3D pulse sequence called steady-state DWI with Trajectory Using Radially Batched Internal Navigator Echoes (TURBINE).