Meeting Banner
Abstract #1617


Chu-Yu Lee1, Zhiqiang Li2, Eric Aboussouan1, Josef P. Debbins, 1,3, James G. Pipe3

1Electrical Engineering, Arizona State University, Tempe, AZ, United States; 2GE Healthcare, Waukesha, WI, United States; 3Keller Center for Imaging Innovation, Barrow Neurological Institute, Phoenix

PROPELLER [1] is a variant of multi-shot FSE technique, providing a high-resolution DWI with excellent immunity to off-resonance. Its self-navigated nature around the center of K-space also allows for motion correction. The odd/even echo phase inconsistencies in the non-CPMG echo train were addressed using the split-blade method [2], where the blade width was reduced by a factor of two, making the motion-related phase more difficult to remove [3]. Thus, this work applied the whole blade method [3] to create wider blades for robustly removing the motion-induced phase. The proposed scheme added the reference blade (only for b=0) to effectively remove the coil phase of odd/even echoes. This reference blade can also be used for GRAPPA kernel training for parallel imaging to further widen the blade width and reduce the scan time.