Spatially-dependent phase shift correction in partial Fourier magnetic resonance images using a hybrid iterative Fourier correction-Gegenbauer reconstruction method

Abstract

The existence of spatially-dependent phase shifts reduce the compatibility of using partial Fourier imaging in magnetic resonance images (MRI). In this study, a new hybrid method for phase-correction is studied. The new algorithm involves compounding both the iterative Fourier correction (IFC) and the Gegenbauer reconstruction (GR) methods, producing a hybrid IFC-GR method. The performance of the IFC-GR method is compared to both the IFC and the basic Fourier correction (BFC) method, an non-iterated version of IFC. Results show that images applied with IFC-GR are more similar structurally to images with no phase shift as opposed to either IFC or BFC images. The results of the study suggest the potential and possible use of the hybrid IFC-GR method for various resource-dependent applications of partial Fourier MRI, and for image phase-retrieval.