Dempster Shafer Approach for High Level Data Fusion Applied to the Assessment of Myocardial Viability
A modular data fusion system based on the Dempster-Shafer framework is presented. This system allows the building of any architecture off usion by chaining elementary modules. Two types ofmo dules are used, the numerical to symbolic conversion modules and the combination modules using logical rules ofcom bination. The uncertainty is modeled by a basic belief assignment or the plausibility of each hypothesis. We applied our system to assess the Left Ventricular (LV) myocardial viability. The parameters taken into account are the LV contractile function extracted from tagged Magnetic Resonance Images (MRI) and the glucose metabolism rate obtained by Positron Emission Tomography (PET) imaging. The variables ofin terest are defined by the medical experts. The results are displayed on polar maps to give a geometrical information of the potential lesions.
KeywordsMyocardial Viability Medical Expert Symbolic Data Fusion System Combination Rule
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