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Publication Detail
Combination of boundary element method and finite element method in diffuse optical tomography
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Elisee JP, Gibson A, Arridge S
  • Publication date:
  • Pagination:
    2737, 2745
  • Journal:
    IEEE Transactions on Biomedical Engineering
  • Volume:
  • Issue:
  • Status:
  • Print ISSN:
This paper presents a new numerical method for optical tomography: the combined boundary element/finite element method (BEM-FEM), designed to tackle reconstructions in layered turbid media. The BEM-FEM focuses on the region of interest by creating a volume mesh and reconstructing in this region only. All other regions are treated as piecewise constant in a surface-integral approach. We validate the model in concentric spheres, with different positions of the volume-integral treated area and found it compared well with an analytical result. We then performed functional imaging of the neonates motor cortex in vivo, in a reconstruction restricted to the brain, both with FEM and BEM-FEM. These results show the effectiveness of the BEM-FEM in situations where the organ of interest is surrounded by superficial layers. © 2010 IEEE.
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