Monotonic algorithm for joint entropy-based anatomical priors in parametric PET image reconstruction

Alexandre Bousse, Christos Panagiotou, Kjell Erlandsson, Sebastien Ourselin, Simon Arridge, Brian F. Hutton

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    3 Citations (Scopus)

    Abstract

    In this paper we aim reconstruct kinetic parameters directly from dynamic PET sinograms. The reconstruction is performed by maximising the log-likelihood with a penalty term that is based on the joint-entropy (JE) with an anatomical prior. We used the surrogates by another group, combined with our own surrogates for the JE term. We developed 2 methods: the first method utilises the JE of the dynamic activity and the anatomical prior and the second one utilises the JE of the parameters and the anatomical priors. Results show the 2 approaches are monotonic and perform better than non-anatomically driven reconstruction in absence of inconsistencies between the activity and the anatomical prior. Also results suggest it is better to apply the prior on the dynamic activity rather than on the parameters.

    Original languageEnglish
    Title of host publication2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
    Pages3918-3924
    Number of pages7
    DOIs
    Publication statusPublished - 2012
    Event2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 - Anaheim, CA, United States
    Duration: 29 Oct 20123 Nov 2012

    Other

    Other2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
    CountryUnited States
    CityAnaheim, CA
    Period29/10/123/11/12

    Keywords

    • joint-entropy
    • Parametric image reconstruction
    • surrogates

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  • Cite this

    Bousse, A., Panagiotou, C., Erlandsson, K., Ourselin, S., Arridge, S., & Hutton, B. F. (2012). Monotonic algorithm for joint entropy-based anatomical priors in parametric PET image reconstruction. In 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 (pp. 3918-3924). [6551899] https://doi.org/10.1109/NSSMIC.2012.6551899