Abstract #2219

Comparing RF heating simulations and experimental results in pTx coils: an evaluation of three simulation methods

Hongbae Jeong¹, Peter Jezzard¹, and Aaron Hess²

¹FMRIB Centre, University of Oxford, Oxford, United Kingdom, ²Department of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom

In this study, we conducted thermal simulations using EM simulation software and compared these to proton resonance frequency (PRF) thermometry using an ultra-high-field MR phantom. RF heating was measured in the magnet environment using a PRF-based 3D GRE on a 8-channel pTx coil. Three types of simulation method were assessed and compared with experimental data. Amongst the three simulation methods the realistic capacitance simulation was closest to the experimental measurement. In conclusion, PRF RF heating measurements with real fiber optic temperature changes can be used to assess and validate different types of RF simulation.

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