Fast MRI coil analysis based on 3-D electromagnetic and RF circuit co-simulation.
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 50Omega 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.
Kozlov
Mikhail
M
Max Planck Institute for Human Cognitive and Brain Research, Stephanstrasse 1A, 04103 Leipzig, Germany. kozlov@cbs.mpg.de
Turner
Robert
R
D000465:Algorithms; D003198:Computer Simulation; D004574:Electromagnetic Fields; D006257:Head / Q000033:anatomy & histology; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000191:economics / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000191:economics / Q000295:instrumentation*; D008872:Microwaves; D011846:Radio Waves; D012984:Software