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Abstract #4374

Near-Field Wave Impedance Matching with High-Permittivity Dielectric Materials for Optimum Transmittance in MRI Systems

Giuseppe Carluccio1, Sukhoon Oh1, Qing Yang2, Danilo Erricolo3, Ray Weiluo2, Christopher Michael Collins1

1Radiology, New York University, New York, United States; 2Radiology, Pennsylvania State University, Hershey, PA, United States; 3Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL, United States

A method to find the optimum permittivity of the dielectric pads that maximizes the matching by analyzing with a simple 1D analytical model the near field wave impedance of the fields generated by a magnetic loop which propagate through different materials. The permittivity values that maximize the matching in this simplified model are compared with the permittivity values that maximize the B1 field in 3D simulations to investigate the correlation between matching and high permittivity dielectric pads.