Mathematical Removal of Positron Range Blurring in High Resolution Tomography

@article{Derenzo1986MathematicalRO,
  title={Mathematical Removal of Positron Range Blurring in High Resolution Tomography},
  author={Stephen E. Derenzo},
  journal={IEEE Transactions on Nuclear Science},
  year={1986},
  volume={33},
  pages={565-569}
}
Positron range blurring can be removed from PET projection data by Fourier deconvolution. The method uses previously measured positron range spread functions whose 'cusp like' shape retains some of the higher spatial frequencey 'iformation. Although the deconvolution process amplifies the statistical noise, especially for for narrow projection bins and for isotopes with high positron energy, it can significantly improve the ability to estimate the amount of positron activity in each region of… CONTINUE READING