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Abstract #2680

Dual-layered multi-channel B0 and RF coil setup for an improved shimming performance at 9.4 Tesla

Christian Mirkes1, G. Shajan1,2, Ali Aghaeifar1, Irena Zivkovic1, Kai Buckenmaier1, and Klaus Scheffler1,3

1High-Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, Tübingen, Germany, 2Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, United Kingdom, 3Biomedical Magnetic Resonance, University Hospital Tübingen, Tübingen, Germany

Multiple local shim coils can be used to improve the B0 homogeneity at ultra-high field. In this work, a dual-layered multi-channel B0 and RF coil setup is presented that allows a flexible design of the shim coil without influencing the RF performance. It is shown that a 16 channel B0 coil in combination with a standard 2nd order spherical harmonics (SH) shim system can achieve a higher degree of B0 homogeneity than a 3rd order SH shim system in the case of whole-brain shimming.

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