ML-reconstruction for TOF-PET with simultaneous estimation of the attenuation factors
- Nuyts, Johan
- Rezaei, Ahmadreza
- Defrise, Michel
Publication date
January 2012
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE) Journal
1082-3654Abstract
In positron emission tomography (PET), attenuation correction is typically done based on information obtained from transmission tomography. Recently, it has been shown that stable maximum-likelihood reconstruction of both the attenuation and the activity from time-of-flight (TOF) PET emission data is possible [1], [2]. Mathematical analysis revealed that the TOF-PET data determine the attenuation correction factors uniquely except for a scale factor [3]. © 2012 IEEE.status: publishe