Abstract #0623
Fast Electromagnetic Analysis of Transmit RF Coils based on Accelerated Integral Equation Methods
Jorge Fernandez Villena 1 , Athanasios G. Polimeridis 1 , Bastien Guerin 2 , Yigitcan Eryaman 1 , Lawrence L. Wald 2,3 , Elfar Adalsteinsson 1,3 , Jacob K. White 1 , and Luca Daniel 1
1
Research Laboratory of Electronics, Dept. of
Electrical Engineering and Computer Science,
Massachusetts Institute of Technology, Cambridge, MA,
United States,
2
A.
A. Martinos Center for Biomedical Imaging, Department of
Radiology, Massachusetts General Hospital, Charlestown,
MA, United States,
3
Harvard-MIT
Division of Health Sciences Technology, Cambridge, MA,
United States
We propose a methodology for the comprehensive full-wave
electromagnetic analysis of arbitrary MRI transmit coils
within few minutes for a given realistic body model at a
given frequency. It allows us to compute the un-tuned
coil port parameters, to obtain the current distribution
for the tuned coils, and the corresponding
electromagnetic field distribution in the inhomogeneous
body for each transmit channel. Such an approach is fast
enough (2-3 minutes for 8-coil arrays) to be applied in
automatic procedures for the optimization of high field
coil designs based on the electromagnetic field
distribution in realistic inhomogeneous human body
models.
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