Abstract #1460

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

Ali Aghaeifar^1,2,3, Jiazheng Zhou^1,2, Irena Zivkovic⁴, Joshi Walzog¹, Mirsat Memaj¹, Theodor Steffen¹, Rahel Heule¹, Feng Jia⁵, Maxim Zaitsev⁵, and Klaus Scheffler^1,3

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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