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A. Realistic human phantom with all tissue layers and simulated birdcage antenna. B. SAR field distribution on simulated human brain, note the homogeneous distribution in brain mass (green) with optimal SAR values from 0.4 W/kg to 0.9 W/kg at 64 MHz. Also, cerebrospinal fluid SAR (blue) with desire lower SAR values to avoid unnecessary increase in temperature.
