Keywords: Heart, ShimsCardiac functional scans adopting bSSFP sequences suffer from dark band artifacts due to B0 inhomogeneity. The best remedy to mitigate this issue is through cardiac B0 shimming. A limited understanding of the B0 conditions in clinical diagnostic orientations impedes the development of an optimal B0 shim strategy in the human heart. Here we perform a theoretical analysis of spherical harmonic B0 shim at 3 T using a static global approach and slice-specific dynamic shim updating in the short-axis views of human hearts from 921 subjects as a starting point for the development of optimized cardiac B0 shim strategies.
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