We investigated the dependence of the incident electric field (E) generated in the ASTM phantom on the coil losses. The results showed that magnetic field (H) normalized to √wbSAR, depends on capacitor Q factors. To avoid systematic errors in predicting the induced electric fields inside a human body the coil model should include realistic coil losses. Our results indicate that the use of ratio E to ||H|| at the coil iso-center normalization to predict E inside a human body located in a commercial birdcage coil based on a numerical coil model with arbitrary coil losses can result in high errors.
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