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Abstract #4206

Fast eddy current characterization for the development of in-bore devices

David Otto Brunner1,2, Betram Jakob Wilm1,2, Simon Gross1, Benjamin Emmanuel Dietrich1, Christoph Barmet1,2, and Klaas Paul Pruessmann1

1Institute for Biomedical Engineering, ETH and University of Zurich, Zurich, Switzerland, 2Skope Magnetic Resonance Technologies Inc., Zurich, Switzerland

Devices operating in the magnet bore, such as coil arrays, receivers or shim inserts become ever more sophisticated as well as the employed image acquisition schemes. However, quantitative testing for their influence on the gradient switching performance is often difficult and time consuming. In this work we present a methodology for measuring, evaluating and predicting eddy current effects fast and quantitatively, employing a dynamic magnetic field camera and a framework of linear time invariant system characterization. For demonstration, standard components and several frequently applied RF coils are assessed.

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