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- Title
Analytic time-of-flight positron emission tomography reconstruction: three-dimensional case.
- Authors
Zeng, Gengsheng L.; Li, Ya; Huang, Qiu
- Abstract
In a positron emission tomography (PET) scanner, the time-of-flight (TOF) information gives us rough event position along the line-of-response (LOR). Using the TOF information for PET image reconstruction is able to reduce image noise. The state-of-the-art TOF PET image reconstruction uses iterative algorithms. This study introduces an analytic TOF PET algorithm that focuses on three-dimensional (3D) reconstruction. The proposed algorithm is in the form of backprojection filtering, in which the backprojection is performed first by using a time-resolution profile function, and then a 3D filter is applied to the backprojected image. For the list-mode data, the backprojection is carried out in the event-by-event fashion, and the timing resolution determined weighting function is used along the projection LOR. Computer simulations are carried out to verify the feasibility of the proposed algorithm.
- Subjects
TIME-of-flight spectrometry; COMPUTER simulation; EMISSION-computed tomography; IMAGE reconstruction; THREE-dimensional imaging
- Publication
Visual Computing for Industry, Biomedicine & Art, 2020, Vol 3, Issue 1, p1
- ISSN
2524-4442
- Publication type
Article
- DOI
10.1186/s42492-020-0042-5