ArticleIEEE transactions on bio-medical engineering2024
Nonlinear Mixed-Effects Modeling Approach for Simplified Reference Tissue Model.
Article in IEEE transactions on bio-medical engineering, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- A reference tissue implementation of Simultaneous Multifactor Bayesian Analysis (SiMBA) of PET time activity curve data.Imaging neuroscience (Cambridge, Mass.) · 2025Article
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3 authors.
Funding
Abstract
objectiveThe conventional approach to the analysis of dynamic PET data can be described as a two-stage approach. In Stage 1, each individual's kinetic parameter estimates are obtained by modeling their PET data. Then in Stage 2, those parameter estimates are treated as though they are the observed data and compared across subjects and groups using standard statistical analyses. In this context, we explore the application of nonlinear mixed-effects (NLME) model under the assumptions of simplified reference tissue model.
methodsIn the NLME framework, all subject's PET data are modeled simultaneously and the estimation of kinetic parameters and statistical inference across subjects are performed jointly.
resultsIn simulated [
conclusionThe proposed approach is more powerful and accurate than the two-stage approach under the assumptions of simplified reference tissue model in PET data. SIGNIFICANCE: The stability of the NLME approach not only improves the efficiency of collected data, but also comes with no additional financial cost and negligible computation cost.
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