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Abstract #2343

MRI Guided HIFU of Visceral Fat: Effect of Heating on T2 Relaxation of Fat

Patrick Winter 1 , Matthew Lanier 1 , Ari Partanen 2 , and Charles Dumoulin 1

1 Radiology, Cincinnati Children's Hospital, Cincinnati, OH, United States, 2 Philips Healthcare, Cleveland, OH, United States

MR-HIFU uses MRI to precisely target a HIFU beam to heat small areas of tissue and to monitor tissue temperature at the target and surrounding regions. A novel application of MR-HIFU is the ablation of fat depots to reverse the progression of obesity and other associated diseases. However, typical MRI thermometry methods cannot monitor temperature changes in fat because there is no shift in the proton resonance frequency. As an alternative, we utilized T2 mapping to assess HIFU ablation of fat under MRI guidance.

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