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Abstract #2602

Real-Time Control of Multiple Coils for the Generation of Gradient and Shim Fields

Stefan Wintzheimer1, Toni Driele1, Michael Ledwig1, Ralf Kartusch1, Peter Michael Jakob, 2, Florian Fidler1

1Research Center Magnetic-Resonance-Bavaria, Wrzburg, Bavaria, Germany; 2Experimental Physics 5, University of Wrzburg

In this study a novel matrix gradient design is presented, which is capable of generating both linear gradient fields for imaging and at the same time high order shim fields. Using a home-built 50-ch gradient amplifier with a customized MR console allows real-time control of fieldprofiles while measuring MR signal. This system was used to create field profiles for shimming complex field distrortions as well as imaging of an sample object in a whole body magnet. Furthermore the new design is able to switch every field order very fast due to low inductivity of the coils.