Keywords: Gradients, GradientsAcoustic noise in MRI scans can be reduced by utilising gradient switching frequencies at 20kHz. High slew rates required to achieve such high-frequency switching can lead to peripheral nerve stimulation (PNS), adding difficulty for application to whole-body gradients. Instead, nonlinear encoding gradients have been shown to limit PNS while achieving desired slew rates. In this work, we show the feasibility of using a nonlinear silent gradient for spatial encoding by employing a PSF-based reconstruction and investigate image fidelity on a 4-fold accelerated in-vivo scan. This method could potentially be utilised for a whole-body gradient design for silent and fast MRI.
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