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

Poster (2017)

Authors

J.H.F. van Gemert Microwave Sensing, Signals & Systems - EEMCS
Wyger M. Brink Leiden University Medical Center
A. Webb Leiden University Medical Center
R.F. Remis Signal Processing Systems - EEMCS
Research Group
Pattern Recognition and Bioinformatics (EEMCS) (TU Delft)
More Info
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Published Date

2017-4

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Intelligent Systems

Research Group

Pattern Recognition and Bioinformatics

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.