Meeting Banner
Abstract #3413

Motion Correction for 3D Radial Encoded Spoiled Gradient Echo Imaging of the Head

Andre Jan Willem van der Kouwe1, Himanshu Bhat2

1A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, United States; 2Siemens Healthcare US, Charlestown, MA, United States

By ordering the spokes of a 3D radial encoded scan in such a way that images may be reconstructed from smaller windows of the acquisition, rigid body motion detection and correction is possible. A method is presented for uniformly ordering the spokes across a hierarchy of window lengths, along with a hierarchical image reconstruction approach that results in a complete and consistent k-space representation and final reconstruction. The method is demonstrated in an ultrashort TE scan of a volunteers brain.