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Abstract #1460

A 32-channel multi-coil shim setup optimized for the human brain, pushing the limits of shimming at 9.4T

Ali Aghaeifar1,2,3, Jiazheng Zhou1,2, Irena Zivkovic4, Joshi Walzog1, Mirsat Memaj1, Theodor Steffen1, Rahel Heule1, Feng Jia5, Maxim Zaitsev5, and Klaus Scheffler1,3

1Max Planck Institute for Biological Cybernetics, Tübingen, Germany, 2IMPRS for Cognitive and Systems Neuroscience, University of Tübingen, Tübingen, Germany, 3Department for Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany, 4C.J. Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, Netherlands, 5Dept. of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany

Multi-coil shimming is an effective approach to reduce B0 field inhomogeneity. In this work, we optimized a 32-channel multi-coil to fit best for shimming of the human brain. The individual coils are optimized in terms of size and position. The performance is compared with the conventional symmetric design.

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