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Design of a dielectric resonator receive array at 7 Tesla using detunable ceramic resonators.

Authors
  • Ruytenberg, Thomas1
  • Webb, Andrew G2
  • 1 C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands. , (Netherlands)
  • 2 C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands. Electronic address: [email protected] , (Netherlands)
Type
Published Article
Journal
Journal of Magnetic Resonance
Publisher
Elsevier
Publication Date
Nov 01, 2017
Volume
284
Pages
94–98
Identifiers
DOI: 10.1016/j.jmr.2017.09.015
PMID: 29024876
Source
Medline
Keywords
License
Unknown

Abstract

Ceramic-based dielectric resonators can be used for high frequency magnetic resonance imaging and microscopy. When used as elements in a transmit array, the intrinsically low inter-element coupling allows flexibility in designing different geometric arrangements for different regions-of-interest. However, without being able to detune such resonators, they cannot be used as elements in a receive-only array. Here, we propose and implement a method, based on mode-disruption, for detuning ceramic-based dielectric resonators to enable them to be used as receive-only elements.

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