Abstract #2141
An Extended Fast Spin-Echo Triple-Echo Dixon Technique with Flexible Echo Separations
Jong Bum Son 1 , Ken-Pin Hwang 1,2 , John Madewell 3 , Ersin Bayram 2 , John Hazle 1 , and Jingfei Ma 1
1
Imaging Physics, The University of Texas MD
Anderson Cancer Center, Houston, TX, United States,
2
Global
MR Applications and Workflow, GE Healthcare, Houston,
TX, United States,
3
Diagnostic
Radiology, The University of Texas MD Anderson Cancer
Center, Houston, TX, United States
Fast spin echo triple-echo Dixon (FTED) acquires one
in-phase (IP) and two out-of-phase (OP) images in a
single acquisition without interleave. A potential
drawback is that echo separation between the three
readout gradients is fixed so that the minimum echo
spacing of FTED as well as some scan parameters is not
flexible. In this work, we propose an extended FTED
pulse sequence in which the echo separation between the
three readout gradients is mostly determined by the scan
parameters. The proposed approach is capable of
producing uniformly separated water and fat images with
minimum echo spacing and adjustable scan parameters.
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