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Abstract #0043

Model-Based Multi-Echo Water/Fat-Separated MR Thermometry

Megan E Poorman 1,2 , Chris J Diederich 3 , Graham Sommer 4 , Kim Butts Pauly 4 , and William A Grissom 1,2

1 Biomedical Engineering, Vanderbilt University, Nashville, TN, United States, 2 Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States, 3 Radiation Oncology, University of California, San Francisco, CA, United States, 4 Radiology, Stanford University, Stanford, CA, United States

A model-based technique is proposed for water/fat-separated multi-echo PRF-shift MR thermometry that leverages recent advancements in water/fat separation to achieve high-quality signal separations while maintaining real-time-compatible compute times. The method is validated in simulations and compared to 3-point Dixon-based temperature maps in canine prostate temperature maps during a transurethral focused ultrasound ablation.

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