Xiao Wei, Hongbo Guo, Yizhe Zhao, Beilei Wang, Jingjing Yu, Xiaowei He

Dynamic fluorescence molecular tomography metabolic parameters solution based on problem decomposition and prior refactor

  • General Physics and Astronomy
  • General Engineering
  • General Biochemistry, Genetics and Molecular Biology
  • General Materials Science
  • General Chemistry
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AbstractDynamic fluorescence molecular tomography (DFMT), as a noninvasive optical imaging method, can quantify metabolic parameters of living animal organs and assist in the diagnosis of metabolic diseases. However, existing DFMT methods do not have a high capacity to reconstruct abnormal metabolic regions, and require additional prior information and complicated solution methods. This paper introduces a problem decomposition and prior refactor (PDPR) method. The PDPR decomposes the metabolic parameters into two kinds of problems depending on their temporal coupling, which are solved using regularization and parameter fitting. Moreover, PDPR introduces the idea of divide‐and‐conquer to refactor prior information to ensure discrimination between metabolic abnormal regions and normal tissues. Experimental results show that PDPR is capable of separating abnormal metabolic regions of the liver and has the potential to quantify metabolic parameters and diagnose liver metabolic diseases in small animals.

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