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Abstract #1474

Electro-Optic E-field Mapping of Medical Implants with High Spatial Resolution: Resonant Excitation of Metallic Stents

Simon Reiss1, Thomas Lottner1, Ali Caglar Özen1, Michael Bock1, and Andreas Bitzer1,2

1Dept. of Radiology, Medical Physics, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany, 2BIOLAB Technolgy AG, Zürich, Switzerland

Electrically conducting implants with small and complex geometrical structures such as stents require electric field measurements with high spatial resolution to assess local MRI safety. So far, E-fields have been measured with dipole antennae that are limited in spatial resolution to several millimeters. In this study, we present an optical setup for 2D spatially resolved E-field measurements of medical implants with high spatial resolution. Resonant excitation of metallic NiTi stents with varying lengths is assessed and the sub-millimeter spatial resolution of the setup is demonstrated.

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