A Fast Water-Fat Separation Method using Multi Echo Time Encoding and Nonlinear Least Squares Estimation
JaeJin Cho 1 , Changheun Oh 1 , Kinam Kwon 1 , and HyunWook Park 1
Department of Electrical Engineering, Korea
Advanced Institute of Science and Technology, Daejeon,
Water-fat separation is essential technique for accurate
diagnosis in many area of MRI. If a parallel imaging
method is applied to water-fat separation in the
spectral direction, imaging time can be reduced.
However, conventional water-fat separation methods
including IDEAL cannot use sensitivity difference of
multichannel RF coil because water and fat images share
the same FOV. In this paper, a new water-fat separation
method is proposed by using the coil sensitivity map and
by encoding difference of resonant frequency between
water and fat.
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