Huanzhou Yu1, Ann Shimakawa1,
Sabina Prato2, Scott B. Reeder3, Charles A. McKenzie4,
Jean H. Brittain5
1Applied Science Laboratory, GE
Healthcare, Menlo Park, CA, United States; 2GE Healthcare,
Waukesha, WI, United States; 3Departments of Radiology, Medical
Physics, Biomedical Engineering and Medicine, University of Wisconsin,
Madison, Madison, WI, United States; 4Department of Medical
Biophysics, University of Western Ontario, London, ON, Canada; 5Applied
Science Laboratory, GE Healthcare, Madison, WI, United States
Three-point
IDEAL water-fat separation techniques have been applied to FSE sequences,
however, minimum scan time is tripled. Therefore, it is desirable to collect
all 3 echoes in one repetition, an approach that brings unique challenges. In
this work, we present a multi-echo FSE-IDEAL implementation that offers
superior noise performance, high quality water-fat separation and flexible
echo shift choices. The bipolar acquisition with high order phase correction
allows efficient acquisition and uniform water-fat separation. Echo shifts
are adapted to the desired resolution with best tradeoff in SNR. The
technique is demonstrated in volunteer scanning in a variety of anatomic
regions.
Keywords