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Abstract #2626

Comparison of Gradient Induced Peak E-fields on Simplified and Realistic Body Models

Koray Ertan1,2, Paolo Decuzzi2, Peter B Roemer3, and Brian Rutt1
1Department of Radiology, Stanford University, Stanford, CA, United States, 2Laboratory of Nanotechnology for Precision Medicine, Italian Institute of Technology, Genoa, Italy, 3Roemer Consulting, Lutz, FL, United States


Either peak E-fields on simple geometries with uniform interior properties as suggested by IEC or coupled E-field and neurodynamic simulations on realistic body models can be employed in PNS optimal gradient coil design. Magneto quasi-static simulations were performed to compare the magnitude and location of the peak E-fields in uniform interior body models with smoothed or realistic surface features to fully heterogeneous Virtual Family models. Although peak E-fields are higher on the heterogeneous body models due to complex tissue interfaces, simplified and/or homogeneous models represent a more practical and robust approach predicting population-wide PNS performance.

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