Abstract #2494

RF Safety Assessment of High Permittivity Dielectric Pads - Impact of Material Insulation

Wyger Brink¹, Rob Remis², and Andrew Webb³

¹Leiden University Medical Center, Leiden, Netherlands, ²Circuits and Systems, dept. of Microelectronics, Delft University of Technology, Delft, Netherlands, ³C.J. Gorter Center, dept. of Radiology, Leiden University Medical Center, Leiden, Netherlands

High permittivity dielectric pads are known to be effective for tailoring the RF field and improving image quality in high field MRI systems. Despite the number of studies reporting benign SAR effects, their safety remains a concern and should be evaluated on an application-specific basis using RF simulations. In this work we demonstrate the impact of insulation material on the RF safety of high permittivity pads, using both RF simulations as well as phantom experiments.

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