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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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