Journal
JOURNAL OF MAGNETIC RESONANCE
Volume 200, Issue 1, Pages 147-152Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmr.2009.06.005
Keywords
Radio-frequency (RF) coils; Magnetic resonance imaging (MRI); Computational electromagnetics
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To accelerate the analysis of a multi-element MRI coil, a two-way link is used between radiofrequency (RF) circuit and 3-D electromagnetic (EM) simulation tools. In this configuration, only one 3-D EM simulation is required to investigate the coil performance over a range of different tunings, saving considerable computation time. For the purpose of 3-D EM simulation, the coil feed networks and trim capacitors are substituted by 50 Omega ports. The entire coil was tuned in the RF circuit domain, and the near-field profiles of the electric and magnetic field components were then calculated, together with the specific energy absorption ratio (SAR) maps in the 3-D EM domain (C) 2009 Elsevier Inc. All rights reserved.
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