Fast 3D Design of High-Permittivity Pads for Dielectric Shimming using Model Order Reduction and Nonlinear Optimization

Jeroen van Gemert, Wyger Brink, Andrew Webb, Rob Remis

Research output: Contribution to conferencePosterScientific

Abstract

High-permittivity pads can be used to improve B High-permittivity pads can be used to improve B homogeneity and intensity in homogeneity and intensity inneuroimaging and body applications. Normally, neuroimaging and body applications. Normally, fifinding the “optimal” pad for a nding the “optimal” pad for aspeci specifific region of interest involves evaluating many di c region of interest involves evaluating many difffferent pad designs using erent pad designs usingelectromagnetic simulations, which is a very time-consuming approach taking electromagnetic simulations, which is a very time-consuming approach takinghours to days of computation time. We propose a nonlinear optimization method hours to days of computation time. We propose a nonlinear optimization methodbased on model order reduction that allows us to design high-permittivity pads based on model order reduction that allows us to design high-permittivity padsin less than 30 seconds. in less than 30 seconds.
Original languageEnglish
Pages1-3
Number of pages3
Publication statusPublished - Apr 2017
Event25th Annual Meeting of the ISMRM - Honolulu, United States
Duration: 22 Apr 201727 Apr 2017
https://www.ismrm.org/2017-annual-meeting-exhibition/

Conference

Conference25th Annual Meeting of the ISMRM
Abbreviated titleISMRM
CountryUnited States
CityHonolulu
Period22/04/1727/04/17
Internet address

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    van Gemert, J., Brink, W., Webb, A., & Remis, R. (2017). Fast 3D Design of High-Permittivity Pads for Dielectric Shimming using Model Order Reduction and Nonlinear Optimization. 1-3. Poster session presented at 25th Annual Meeting of the ISMRM, Honolulu, United States. http://ens.ewi.tudelft.nl/pubs/remis17ismrm3a.pdf