Metamaterial line element on a thin substrate for magnetic resonance imaging RF coils

Vijayaraghavan Panda, Lance Delabarre, Thomas J. Vaughan, Anand Gopinath

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

An optimized Metamaterial line resonator element for a Metamaterial imaging RF coil is developed for the ultrahigh field MRI systems. The coil element performance is compared to that of the transmission line (microstrip) [1] and the dipole [2,5] coil elements for the 10.5T MRI with a Larmor frequency of 447 MHz. Good penetration into the test phantom is observed for the Metamaterial element with negligible change in the resonance condition and the Q-factor (∼70) after loading. Images of a cylindrical phantom are obtained in the 10.5T Siemens MRI system with proposed metamaterial line element and the dipole element [4] are compared to validate the performance. A 48-cm metamaterial line is simulated to show the extendibility of the line beyond half a wavelength while maintaining the homogeneous field distribution.

Original languageEnglish (US)
Title of host publication2017 1st IEEE MTT-S International Microwave Bio Conference, IMBioC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538617137
DOIs
StatePublished - Jun 30 2017
Event1st IEEE MTT-S International Microwave Bio Conference, IMBioC 2017 - Gothenburg, Sweden
Duration: May 15 2017May 17 2017

Publication series

Name2017 1st IEEE MTT-S International Microwave Bio Conference, IMBioC 2017

Other

Other1st IEEE MTT-S International Microwave Bio Conference, IMBioC 2017
CountrySweden
CityGothenburg
Period5/15/175/17/17

Bibliographical note

Funding Information:
This project is funded in part by NIH NIH-EB0006835 and in part by the University of Minnesota.

Publisher Copyright:
© 2017 IEEE.

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

Keywords

  • MRI imaging
  • Metamaterial line
  • dipole antenna
  • microstrip line
  • resonators
  • ultra-high magnetic fields

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