4D-PET reconstruction using a spline-residue model with spatial and temporal roughness penalties

  title={4D-PET reconstruction using a spline-residue model with spatial and temporal roughness penalties},
  author={George P. Ralli and Michael A. Chappell and Daniel R. McGowan and Ricky A. Sharma and Geoff S. Higgins and John D. Fenwick},
  journal={Physics in medicine and biology},
  pages={095013 - 095013}
4D reconstruction of dynamic positron emission tomography (dPET) data can improve the signal-to-noise ratio in reconstructed image sequences by fitting smooth temporal functions to the voxel time-activity-curves (TACs) during the reconstruction, though the optimal choice of function remains an open question. We propose a spline-residue model, which describes TACs as weighted sums of convolutions of the arterial input function with cubic B-spline basis functions. Convolution with the input… 
Towards quantitative small-animal imaging on hybrid PET/CT and PET/MRI systems
The trends till 2020 in the field of preclinical PET imaging is reviewed with emphasize on image reconstruction and quantitative corrections implemented on state-of-the-heart hybrid systems.
Real-time control of respiratory motion: Beyond radiation therapy.
  • C. Cavedon
  • Medicine
    Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics
  • 2019
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