In this work, we investigate whether an established method to correct distortions in conventional MRI can be repurposed to correct distortions arising from the nonlinearity of B1 gradients when performing RF-encoded MRI at low field, where SAR constraints are reduced. Although several methods are capable of correcting image distortions arising from nonlinear B0 gradients and/or large B0 inhomogeneity, here we chose to adapt the method of Weis et al. Through theory and simulations, we demonstrate the ability to correct image distortions arising from nonlinear B1 gradients in RF-encoded MRI.
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