Fat-water separation in a rapid quantitative mapping sequence
Ken-Pin Hwang 1,2 , Jong Bum Son 2 , Marcel Warntjes 3 , Ersin Bayram 1 , and Jingfei Ma 2
Global MR Applications and Workflow, GE
Healthcare, Houston, TX, United States,
of Imaging Physics, The University of Texas M. D.
Anderson Cancer Center, Houston, TX, United States,
for Medical Imaging Science and Visualisation,
University of Linkoping, Linkoping, Sweden
The Fast Triple Echo Dixon fat-water separation
technique is combined with QMAP, to obtain in a single
sequence the relative signal fraction of each species,
in addition to the T1, T2, and PD information provided
by QMAP. The FSE sequence is modified by a replacing the
standard readout pulse with a three-echo bipolar
readout. The fat/water separation is first performed,
and relaxation parameter fitting is then applied
separately to the fat and water images. Not only is more
information provided in this technique, but quantitation
could potentially be improved in mixed voxel species.
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