Abstract #1127

Simple Anatomical Measures Correlate with Individual PNS Thresholds for kHz-range Homogeneous Magnetic Fields

Omer Burak Demirel^1,2,3,4, Toygan Kilic^1,2, Tolga Çukur^1,2,5, and Emine Ulku Saritas^1,2,5

¹Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey, ²National Magnetic Resonance Research Center (UMRAM), Bilkent University, Ankara, Turkey, ³Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States, ⁴Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, United States, ⁵Neuroscience Graduate Program, Bilkent University, Ankara, Turkey

This work shows for the first time that fat percentage strongly correlates with peripheral nerve stimulation (PNS) thresholds for kHz-range homogeneous magnetic fields. The correlations get even stronger after taking into account the effects of body part size that is exposed to the magnetic field. These types of magnetic fields are used as excitation field in Magnetic Particle Imaging (MPI). Hence, these results can potentially lead to subject specific threshold prediction, allowing high performance scans within subject specific safety limits.

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