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  • Title: Phase sensitive reconstruction for water/fat separation in MR imaging using inverse gradient.
    Author: Rydell J, Knutsson H, Pettersson J, Johansson A, Farnebäck G, Dahlqvist O, Lundberg P, Nyström F, Borga M.
    Journal: Med Image Comput Comput Assist Interv; 2007; 10(Pt 1):210-8. PubMed ID: 18051061.
    Abstract:
    This paper presents a novel method for phase unwrapping for phase sensitive reconstruction in MR imaging. The unwrapped phase is obtained by integrating the phase gradient by solving a Poisson equation. An efficient solver, which has been made publicly available, is used to solve the equation. The proposed method is demonstrated on a fat quantification MRI task that is a part of a prospective study of fat accumulation. The method is compared to a phase unwrapping method based on region growing. Results indicate that the proposed method provides more robust unwrapping. Unlike region growing methods, the proposed method is also straight-forward to implement in 3D.
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