Meeting Banner
Abstract #4424

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

Jeroen van Gemert1, Wyger Brink2, Andrew Webb2, and Rob Remis1

1Circuits and Systems, Delft University of Technology, Delft, Netherlands, 2Radiology, Leiden University Medical Center, Leiden, Netherlands

High-permittivity pads can be used to improve B1+ homogeneity and intensity in neuroimaging and body applications. Normally, finding the “optimal” pad for a specific region of interest involves evaluating many different pad designs using electromagnetic simulations, which is a very time-consuming approach taking hours to days of computation time. We propose a nonlinear optimization method based on model order reduction that allows us to design high-permittivity pads in less than 30 seconds.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords