Application of mathematical removal of positron range blurring in positron emission tomography
- 1 June 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 37 (3) , 1293-1299
- https://doi.org/10.1109/23.57379
Abstract
The range of positrons in tissue is an important limitation to the ultimate spatial resolution achievable in positron emission tomography. In this work, a Fourier deconvolution technique is applied to remove range blurring in images taken by the Donner 600-crystal positron tomograph. Using phantom data, the authors found significant improvement in the image quality and the FWHM for both /sup 68/Ga and /sup 82/Rb. These were successfully corrected so that the images and FWHM almost matched those of /sup 18/F, which has negligible positron range. However, statistical noise was increased by the deconvolution process and it was not practical to recover the full spatial resolution of the tomograph.Keywords
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