A normalization technique for multispectral acquisition in positron emission tomography
- 2 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 976-978 vol.2
- https://doi.org/10.1109/nssmic.1992.301087
Abstract
A novel normalization technique for multispectral acquisition (MSA) in positron emission tomography (PET) imaging is described. MSA data are affected by spectral nonuniformity due to variations in detector characteristics. As with conventional methods, the normalization must preserve counts as it reduces nonuniformity but spectral shapes must be restored and symmetry distortions between mirror windows must be compensated. The proposed method achieves these goals by averaging each window pair over all detectors and by balancing mirror windows. The method was tested with a variety of spectral distortions and was found to be successful in restoring data uniformity. It is concluded that MSA PET imaging is possible with relatively nonuniform detector response, but with stable detector characteristics are essential.<>Keywords
This publication has 3 references indexed in Scilit:
- A PET camera simulator with multispectral acquisition capabilitiesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Tuning of avalanche photodiode PET cameraPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- PET system calibrations and corrections for quantitative and spatially accurate imagesIEEE Transactions on Nuclear Science, 1989