Parameter estimation of the BOLD fMRI model within a general particle filter framework
Hettiarachchi, Imali T., Mohamed, Shady and Nahavandi, Saeid 2012, Parameter estimation of the BOLD fMRI model within a general particle filter framework, in ISMRM 2012 : Adapting MR in a Changing World : Proceedings of the 20th International Society for Magnetic Resonance in Medicine Annual Meeting and Exhibition, IEEE Compter Society, Piscataway, N.J., pp. 1-2.
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Title
Parameter estimation of the BOLD fMRI model within a general particle filter framework
ISMRM 2012 : Adapting MR in a Changing World : Proceedings of the 20th International Society for Magnetic Resonance in Medicine Annual Meeting and Exhibition
International Society for Magnetic Resonance in Medicine Annual Meeting and Exhibition
Start page
1
End page
2
Total pages
2
Publisher
IEEE Compter Society
Place of publication
Piscataway, N.J.
Summary
This work demonstrates a novel Bayesian learning approach for model based analysis of Functional Magnetic Resonance (fMRI) data. We use a physiologically inspired hemodynamic model and investigate a method to simultaneously infer the neural activity together with hidden state and the physiological parameter of the model. This joint estimation problem is still an open topic. In our work we use a Particle Filter accompanied with a kernel smoothing approach to address this problem within a general filtering framework. Simulation results show that the proposed method is a consistent approach and has a good potential to be enhanced for further fMRI data analysis.
Language
eng
Field of Research
090399 Biomedical Engineering not elsewhere classified
Socio Economic Objective
970109 Expanding Knowledge in Engineering
HERDC Research category
E2 Full written paper - non-refereed / Abstract reviewed
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