Combination of Boundary Element Method and Finite Element Method in Diffuse Optical Tomography
Combination of Boundary Element Method and Finite Element Method in Diffuse Optical Tomography
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漫射光学层析成像中边界元法与有限元法的结合
DOI:
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发表时间:
2010
影响因子:
4.6
通讯作者:
S. Arridge
中科院分区:
文献类型:
--
作者:
Josias P. Elisee;A. Gibson;S. Arridge
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 neonate's 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.
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DOI:
10.1364/josaa.26.000443
发表时间:
2009-02-01
影响因子:
1.9
作者:
Cox, B. T.;Arridge, S. R.;Beard, P. C.
通讯作者:
Beard, P. C.
影响因子:
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作者:
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DOI:
10.1073/pnas.040570597
发表时间:
2000-03-14
影响因子:
11.1
作者:
Ntziachristos, V;Yodh, AG;Chance, B
通讯作者:
Chance, B
影响因子:
3.5
作者:
Hielscher, AH;Klose, AD;Beuthan, J
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Beuthan, J