Design and characterization of passively-fed dipole arrays with improved specific absorption rate efficiency and reduced loading effects for ultra-high field MRI

Irena Zivkovic, Andrew Webb

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

MRI at Ultrahigh Field (UHF) is complicated by interferences that occur in the transmit field (B 1 +) as a result of the relatively short wavelength of the RF transmit field compared to the dimensions of the imaging region [1], [2]. These interferences produce areas of spatially dependent image contrasts. In order to mitigate the inhomogeneous transmit field, multichannel transmit array systems have been developed. In such a system it is possible to independently control the amplitude and/or phase of each individual element, as well as to apply different RF pulses to each channel.

Original languageEnglish
Title of host publicationProceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
Place of PublicationGranada, Spain
PublisherIEEE Press
Number of pages1
ISBN (Electronic)9781728105635
DOIs
Publication statusPublished - 2019
Externally publishedYes
Event9th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2019 - Granada, Spain
Duration: 9 Sep 201913 Sep 2019

Conference

Conference9th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2019
CountrySpain
CityGranada
Period9/09/1913/09/19

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    Zivkovic, I., & Webb, A. (2019). Design and characterization of passively-fed dipole arrays with improved specific absorption rate efficiency and reduced loading effects for ultra-high field MRI. In Proceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019 [8879117] IEEE Press. https://doi.org/10.1109/ICEAA.2019.8879117