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This study describes a new method to improve RF safety of implantable medical devices located outside of the imaging region by using a secondary resonator (SR) to reduce electric fields and corresponding specific absorption rate (SAR) during MRI. The SR is designed to produce opposing electro-magnetic fields (EM-fields) compared to the EM-fields made by a body coil at 3.0T. This study was performed using numerical simulations with ASTM phantom and human models, and corresponding experimental verifications with the ASTM phantom. Keywords: RF safety, secondary resonator
Park et al. (Wed,) studied this question.
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