Using the STIR optimization method to determine the optimal rung drives for resonators in high field head MRI
نویسندگان
چکیده
F. Liu, S. Crozier, A. Trakic, B. Xu, B. Li, Q. Wei School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, QLD, Australia Synopsis Numerical simulations are used in an attempt to find optimal source profiles for high frequency RF coils. Shielded circular and elliptical birdcage coils operating at 170MHz, 300MHz and 470MHz are studied. The 2D-FDTD optimization is carried out using the calculated EMF fields inside a human head model and sensitivity characteristics of the individual rungs of a resonator. The simulation results demonstrate the strength of the proposed method.
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