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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