Hojin Kim1,2, Kyung Sung1, Misung
Han1,2, Marcus Alley1, Wenmiao Lu3, Brian
Andrew Hargreaves1
1Department of Radiology, Stanford
University, Stanford, CA, United States; 2Department of Electrical
Engineering, Stanford University, Stanford, CA, United States; 3School
of Electrical and Electronic Engineering, Nanyang Technological University,
Singapore
Bipolar
multi-echo sequence benefits from reducing scan time as well as motion
artifacts at the cost of several sources of phase discrepancy due to the
polarity reversal in the readout gradient. To address phase correction in
bipolar sequences, this work proposes the use of simple reference scan with
baseline projections, which corrects linear and constant phase errors.
Significantly, this proposed method is applied for off-isocenter imaging, so
that accurate water-fat separation in bipolar sequence is capable at any scan
location.