Abstract #2822

Prosepective Phase Correction for 3D FSE

Kristin L. Granlund^1,2, 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.