Transmission Profile Filtering for Positron Emission Tomography
- 1 January 1986
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 33 (1), 478-481
- https://doi.org/10.1109/tns.1986.4337146
Abstract
Attenuation correction in PET performed by the transmission measurement method provides accurate compensation but increases image noise. Transmission profile filtering is evaluated in terms of image noise reduction as a trade-off against systematic error introduced by the filter itself. Phantom measurements performed on the UBC/TRIUMF PETT VI tomograph are used to evaluate filter performance. It is found that filtering with a Gaussian of 12.5 mm FWHM reduces the image variance due to noise in transmission profiles by a factor of 15.Keywords
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