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

  • Vincent Paul Vasquez Munar Department of Physical Sciences and Mathematics, University of the Philippines Manila
  • Patrick Joshua G Baldovino Department of Physical Sciences and Mathematics, University of the Philippines Manila
  • Herbert B Domingo Department of Physical Sciences and Mathematics, University of the Philippines Manila
  • Roberto S Vitancol Department of Physical Sciences and Mathematics, University of the Philippines Manila
Keywords: Magnetic Resonance Imaging, Image quality, Phase retrieval

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.

Published
2017-06-07
Issue
Proceedings of the 35th Samahang Pisika ng Pilipinas Physics Conference
Section
Image and Signal Processing

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