Abstract #0168

$$$B_{0}$$$-component determination of the gradient system transfer function using standard MR scanner hardware

Manuel Stich^1,2, Tobias Wech¹, Anne Slawig^1,2, Gudrun Ruyters³, Andrew Dewdney³, Ralf Ringler², Thorsten A. Bley¹, and Herbert Köstler¹

¹Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Würzburg, Germany, ²X-Ray and Molecular Imaging Laboratory, Ostbayerische Technische Hochschule Amberg-Weiden, Weiden, Germany, ³Siemens Healthcare GmbH, Erlangen, Germany

As a linear and time-invariant (LTI) system, the dynamic gradient system can be described by the system transfer function. While special measurement equipment like field cameras can be used to precisely determine even higher orders of the transfer function, phantom-based approaches were introduced for alternative determination without additional hardware needed. This study reports on phantom-based measurements of B₀-components, which resulted in transfer functions with sufficiently high resolution for the characterization of mechanical resonances.

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