The utility of a marched absorbing layer boundary condition in the finite element analysis of diffuse photon density wave propagation in tissues relevant to breast imaging.
Here we introduce a marched absorbing layer boundary condition for the finite element analysis of diffuse photon density wave propagation in tissues. We investigated and optimized the parameters required to set up a marched absorbing layer boundary for diffuse photon density wave propagation in media with different absorption and scattering coefficients. Comparing with using a breast model connected to a large substrate and a Robin boundary condition, using a marched absorbing layer boundary condition to replace part of the large base reduced the time for forward modeling by about 30%.
Li
Chengyu
C
Department of Radiation Oncology, University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.
Cheung
M Rex
MR
D001940:Breast / Q000033:anatomy & histology*; D020342:Finite Element Analysis; D008962:Models, Theoretical; D017785:Photons; D019265:Spectroscopy, Near-Infrared; D014054:Tomography / Q000379:methods*