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Abstract #1151

Multi-Coil B0 shimming of the Human Heart: A Theoretical Assessment

Wolfram Mattar1, Christoph Juchem2, Maxim Terekhov3, and Laura Schreiber3

1Department of Radiology, Section of Medical Physics, Johannes Gutenberg University Medical Center, Mainz, Germany, 2Departments of Radiology and Imaging Sciences, and Neurology, Yale University School of Medicine, New Haven, CT, United States, 3Department of Cellular and Molecular Imaging, Comprehensive Heart Failure Center, Wuerzburg, Germany

This study entails a comprehensive, theoretical analysis of B0 shimming capabilities in the human heart. Three-dimensional B0 distributions over the in vivo human heart are addressed with various spherical harmonic and multi-coil shimming (shimming with individual placed magnetic coils to modify the B0 field) approach in a static, dynamic and a hybrid fashion. The results of the study show that, as expected, the global standard static spherical harmonic shimming (clinical standard) are generally inferior in comparison with the results of specifically tailored and customized shimming methods based on dynamic and multi-coil approaches.

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