Abstract #3645
Two-Point Dixon with Single Species Domination Assumption
Kang Wang 1 , Ken-Pin Hwang 2 , Zachary Slavens 3 , and Ersin Bayram 2
1
Global Applications and Workflow, GE
Healthcare, Madison, WI, United States,
2
Global
Applications and Workflow, GE Healthcare, Houston, TX,
United States,
3
MR Engineering, GE Healthcare,
Waukesha, WI, United States
Conventional 2-pt Dixon water-fat separation method
requires the input source echo images to be close to
in-phase (IP) and out-of-phase (OOP). This makes no
assumptions about the water-percentage (or
fat-percentage) of the pixel data. In this work, the
assumption that in vivo pixels are either very
water-dominant or fat-dominant was used, and it was
experimentally demonstrated that the input echo source
images can substantially deviate from the ideal IP and
OOP echo times while still obtaining robust water-fat
separation using the unchanged IP-OOP signal model for
water-fat separation. Theoretical analysis is also
given.
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