Issa, I., Ford, K.L. orcid.org/0000-0002-1080-6193, Rao, M. et al. (1 more author) (2016) Evaluation of High Impedance Surfaces for MRI RF Coil Applications Simulations of RF Field and Specific Absorption Rate. In: 2016 10th European Conference on Antennas and Propagation (EuCAP). 2016 10th European Conference on Antennas and Propagation (EuCAP), 10-15 Apr 2016, Davos, Switzerland. IEEE ISBN 978-8-8907-0186-3
Abstract
This paper investigates the use of High Impedance Surfaces (HIS) to enhance the magnetic near-field within a dielectric phantom stimulated by a surface coil antenna resonating at 63.8 MHz for use in Magnetic Resonance Imaging (MRI) systems. Specifically, the optimization of the space between the surface of the coil and the HIS is presented here. The HIS incorporates interdigitated capacitive elements that produce an electrically small unit cell size. The magnetic field strength is shown to be improved by 42% as compared to a system which uses only an RF shield The associated Specific Absorption Rate (SAR) for the optimum design is simulated and compared to international standards. The work is aimed at 1.5T MRI applications.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2016 IEEE. This is an author produced version of a paper subsequently published in 2016 10th European Conference on Antennas and Propagation (EuCAP). Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > Department of Infection, Immunity and Cardiovascular Disease The University of Sheffield > Sheffield Teaching Hospitals |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 29 Sep 2017 10:51 |
Last Modified: | 19 Dec 2022 13:36 |
Published Version: | https://doi.org/10.1109/EuCAP.2016.7481761 |
Status: | Published |
Publisher: | IEEE |
Refereed: | Yes |
Identification Number: | 10.1109/EuCAP.2016.7481761 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:121846 |