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
Pages1148
Number of pages1
Publication statusPublished - 2016
EventInternational Society for Magnetic Resonance in Medicine 24rd Annual Meeting & Exhibition - , Singapore
Duration: 7 May 20168 May 2016
http://www.ismrm.org/2016-annual-meeting-exhibition/

Conference

ConferenceInternational Society for Magnetic Resonance in Medicine 24rd Annual Meeting & Exhibition
CountrySingapore
Period7/05/168/05/16
Internet address

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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. 1148. Abstract from International Society for Magnetic Resonance in Medicine 24rd Annual Meeting & Exhibition, Singapore.