Frequency Filtered SENSE Shimming for B0 Inhomogeneity Detection

Daniel Nicolas Splitthoff¹, Maxim Zaitsev¹

Recently the generalised non-linear SENSE Shimming (SSH) method was introduced, which can be used for estimating B0 inhomogeneities. The approach uses a reference image and tries to explain the time curve of a Free Induction Decay (FID) based on a model including relaxation and inhomogeneities. Due to the usage of the FID the method was up to now restricted to axial slices. We here introduce the concept of frequency filtered FIDs which enables the method to be used with an arbitrary slice orientation. Results from an in vivo measurement are shown.