An Efficient 3D RF Simulation Tool for Dielectric Shimming Optimization

J. van Gemert, W. Brink, A. Webb, R.F. Remis

Research output: Contribution to conferenceAbstractScientific

Abstract

High permittivity materials, in the form of “dielectric pads” are used in neuroimaging and body applications to improve B1+ homogeneity and intensity or to reduce corresponding SAR measures. In 3D, systematic pad design is computationally intensive with very long associated simulation times. We propose a hybrid solution to this problem by combining the flexibility of FDTD to model complex background configurations (coil/shield/subject) with an integral equation approach that takes the presence of a dielectric pad into account. This solution leads to speed up factors of 30 – 40 compared with conventional FDTD approaches and enables effective 3D dielectric pad design.
Original languageEnglish
Pages4
Number of pages1
Publication statusPublished - 2016
EventISMRM Benelux Chapter 2016: The Eight Annual Meeting of the ISMRM Benelux Chapter - Eindhoven, Netherlands
Duration: 22 Jan 201622 Jan 2016

Conference

ConferenceISMRM Benelux Chapter 2016
CountryNetherlands
CityEindhoven
Period22/01/1622/01/16

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    Gemert, J. V., Brink, W., Webb, A., & Remis, R. F. (2016). An Efficient 3D RF Simulation Tool for Dielectric Shimming Optimization. 4. Abstract from ISMRM Benelux Chapter 2016, Eindhoven, Netherlands.