In this study, we demonstrate the effects on RF simulation from subtly different tissue compartments in the same morphometric space. We evaluate this by using two well-characterised electromagnetic models, Duke versions 1.0 and 3.0. Maps of 10g SAR across a range of B1+ shims were evaluated, showing uncertainties arising from segmentation differences. By using a dedicated voxel model, an increased confidence in electromagnetic simulation can be achieved.
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