Kristin L. Granlund1,2, Weitian Chen3, Dawei Gui4, Donglai Huo4, Shawlee Zhao4, Kevin M. Koch5, Richard Scott Hinks5, Anja C. S. Brau3
1Radiology, Stanford University, Stanford, CA, United States; 2Electrical Engineering, Stanford University, Stanford, CA, United States; 3Global Applied Science Laboratory, GE Healthcare, Menlo Park, CA, United States; 4MR PSD & Applications, GE Healthcare, Waukesha, WI, United States; 5Global Applied Science Laboratory, GE Healthcare, Waukesha, WI, United States
Failure to achieve the CPMG conditions for a 3D FSE sequence results in significant image artifacts, particularly for off-isocenter imaging due to system non-idealities. We prospectively correct the sequence by measuring phase errors in the x and z directions during prescan and update the sequence parameters so that the modified sequence meets the CPMG conditions. This iterative correction allows us to collect images without banding artifacts.