Evaluation of a New Regularization Prior for 3-D PET Reconstruction Including PSF Modeling

@article{Rapisarda2012EvaluationOA,
  title={Evaluation of a New Regularization Prior for 3-D PET Reconstruction Including PSF Modeling},
  author={Eugenio Rapisarda and Valentino Bettinardi and Kris Thielemans and Maria Carla Gilardi},
  journal={IEEE Transactions on Nuclear Science},
  year={2012},
  volume={59},
  pages={88-101}
}
The response of a PET system can be described by its characteristic Point Spread Function (PSF) representing the spatial degradation of a point source due to physical effects and system design. If the PSF is accounted for in the reconstruction algorithm, better image quality and spatial resolution may be achieved. Un- fortunately, a common behaviour of unregularized iterative reconstruction techniques is represented by the increase of noise as the iterations proceed, while-on the other hand-a… CONTINUE READING

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