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  1. usc-mrel.github.io

    Anisotropic Field-of-View Support for Golden Angle Radial Imaging Ziyue Wu,1,2* Fei Han,3 Peng Hu,3 and Krishna S. Nayak2 Purpose: To provide anisotropic field-of-view (FOV) support for golden angle radial imaging. Theory and Methods: In radial imaging, uniform spoke den-sity leads to a circular FOV, which is excessive for objects
  2. onlinelibrary.wiley.com

    Simulations, phantom, and in vivo experiments confirmed that the proposed method is able to achieve anisotropic FOV while still maintaining the benefits of golden angle sampling. This approach requires 50% less spokes for elliptical FOV with major‐to‐minor‐axis ratio of 1:0.3, when compared with isotropic FOV with the same undersampling ...
    Author:Ziyue Wu, Fei Han, Peng Hu, Krishna S. NayakPublished:2016
  3. pubmed.ncbi.nlm.nih.gov

    Purpose: To provide anisotropic field-of-view (FOV) support for golden angle radial imaging. Theory and methods: In radial imaging, uniform spoke density leads to a circular FOV, which is excessive for objects with anisotropic dimensions. Larson et al previously showed that the angular k-space spoke density can be determined by the desired anisotropic FOV.
  4. ncbi.nlm.nih.gov

    National Center for Biotechnology Information

    https://www.ncbi.nlm.nih.gov › pmc › articles › PMC4766068

    We have demonstrated a simple solution to enable 2D anisotropic FOV support for golden angle radial imaging. This can reduce imaging times in many scenarios (abdomen, spine, etc.) where the object dimensions are anisotropic, while still allowing for retrospective selection of temporal resolution.
    Author:Ziyue Wu, Fei Han, Peng Hu, Krishna S. NayakPublished:2016
  5. archive.ismrm.org

    Anisotropic Field-of-Views in 3D Golden Angle Radial Imaging. Guruprasad Krishnamoorthy 1,2 ... One of the limitations of the current implementations of 3D-GA rad is, it only supports isotropic field-of-view (FOV), ... In this work, we have developed a method based on the work by Larson et al., to support anisotropic FOV with different FOV ...
  6. Included are design functions for 2D and 3D radial frequency space sampling, as well as PROPELLER MRI trajectories and golden angle ordering. C implementations for designing elliptical FOV trajectories are also included. Illustration of Sampling in radial imaging. Point Spread Functions for 3-D PR trajectories with anisotropic FOVs
  7. archive.ismrm.org

    3D Golden Angle Stack-of-Stars with Anisotropic Field-of-View. Joao Tourais 1,2, Guruprasad Krishnamoorthy ... and have a diffuse aliasing pattern. However, standard implementations of radial imaging do not support in-plane anisotropic FOV, which leads to sampling redundancy when the object being imaged has anisotropic in-plane dimensions (e.g ...
  8. archive.ismrm.org

    Anisotropic Field-of-View Support for Golden Angle Radial Imaging. ... In this work,We extend that approach and demonstrate a simple solution to enable 2D anisotropic FOV with GA radial imaging, which can significantly reduce imaging times in many scenarios (abdomen, spine, etc.) where the object dimensions are anisotropic, while still allowing ...
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