A Fresh Look at the Validity of Diffusion Equations for Modelling Phosphorescence Imaging of Biological Tissue

  • Chintha C. Handapangoda
  • Malin Premaratne
  • Saeid Nahavandi
Conference paper

DOI: 10.1007/978-3-642-32645-5_58

Part of the Lecture Notes in Computer Science book series (LNCS, volume 7425)
Cite this paper as:
Handapangoda C.C., Premaratne M., Nahavandi S. (2012) A Fresh Look at the Validity of Diffusion Equations for Modelling Phosphorescence Imaging of Biological Tissue. In: Lee G., Howard D., Kang J.J., Ślęzak D. (eds) Convergence and Hybrid Information Technology. ICHIT 2012. Lecture Notes in Computer Science, vol 7425. Springer, Berlin, Heidelberg

Abstract

Phosphorescence lifetime imaging has become a widely used technique for tomographic oxygen imaging. The conventional model used to characterize photon transport in phosphorescence imaging is two coupled diffusion equations. On the premise that the total energy of excitation and phosphorescence photon flows must be conserved, we derive the diffusion equations in phosphorescence imaging and show that there must be an additional term to account for the transport of phosphorescent photons. This additional term accounts for the transport of phosphorescence photon energy density due to its gradients. The significance of this term in modelling phosphorescence in biological tissue is assessed.

Keywords

Phosphorescence imaging Photon transport theory Diffusion approximation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Chintha C. Handapangoda
    • 1
  • Malin Premaratne
    • 2
  • Saeid Nahavandi
    • 1
  1. 1.Centre for Intelligent Systems ResearchDeakin UniversityGeelongAustralia
  2. 2.Advanced Computing and Simulation Laboratory (AχL), Department of Electrical and Computer Systems EngineeringMonash UniversityClaytonAustralia

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