I. Schmale, B. Gleich, Joachim D Schmidt, J. Rahmer, C. Bontus, R. Eckart, B. David, M. Heinrich, O. Mende, O. Woywode, Jonas Jokram, J. Borgert
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Human PNS and SAR study in the frequency range from 24 to 162 kHz
In order to identify suitable operating conditions for future clinical Magnetic Particle Imaging, peripheral nerve stimulation (PNS) and specific absorption rate (SAR) experiments have been performed by exposing volunteers to sinusoidally time-varying magnetic fields along and transverse to the body axis at frequencies from 24 kHz to 162 kHz. The findings show that future clinical MPI can advantageously be performed at elevated drive-field frequencies, with PNS restriction actually relaxed at higher frequencies, and with still acceptable SAR exposure.
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