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Abstract #0573

Robust abdominal imaging with uniform fat suppression using Dixon based single shot turbo spin echo

Xinzeng Wang1, Joshua S. Greer1,2, Ivan Pedrosa1,3, Neil M. Rofsky1,3, and Ananth J. Madhuranthakam1,3

1Radiology, UT Southwestern Medical Center, Dallas, TX, United States, 2Bioengineering, University of Texas at Dallas, Richardson, TX, United States, 3Advanced Imaging Research Center, UT Southwestern Medical Center, Dallas, TX, United States

Breath-held single shot TSE sequence is a widely used in abdominal imaging due to its speed combined with robustness to field inhomogeneities and motion. Fat suppression techniques, such as SPAIR and Dixon method are often used in SShTSE to increase the conspicuity of the anatomical details. However, SPAIR is sensitive to B0 inhomogeneity resulting in incomplete fat suppression and Dixon method requires prolonged acquisition times. In this work, we implement a dual-echo SShTSE acquisition acquiring the in-phase (IP) and out-of-phase (OP) echoes in the same repetition, providing a true single shot acquisition with robust fat/water separation.

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