Chinese Journal of Lasers, Volume. 45, Issue 6, 0607003(2018)
Bioluminescence Tomography Based on Multilevel Adaptive Finite Element Method
Figures & Tables(7)
Fig. 1. (a) An undivided tetrahedral element; (b) two tetrahedral elements obtained by subdividing the midpoint of the longest edge
Fig. 2. (a) Digital mouse model; (b) surface light intensity distribution of the forward grid
Fig. 3. 3D view and energy distribution of reconstruction results in single-source case. (a)(b) L1-LS method; (c)(d) L1-LS/MAFEM (α=70%) method; (e)(f) L1-LS/MAFEM (α=40%) method;(g)(h) L1-LS/PRS-MAFEM method
Fig. 4. 3D view and energy distribution of reconstruction results in double-source case. (a)(b) L1-LS method; (c)(d) L1-LS/MAFEM (α=70%) method; (e)(f) L1-LS/MAFEM (α=40%) method; (g)(h) L1-LS/PRS-MAFEM method
Table 1. Optical parameters of the digital mouse model
View tableTable 1. Optical parameters of the digital mouse model
Item Muscle Heart Stomach Liver Kidney Lung μa /mm-10.10 0.21 0.01 0.126 0.066 0.22 μs /mm-11.20 2.00 1.74 0.563 2.25 2.30
Table 2. Reconstruction results of single-source simulation
View tableTable 2. Reconstruction results of single-source simulation
Method Reconstruction position center /mm d LE /mmReconstruction density /(nW·mm-3) L1-LS (11.68,11.50,20.29) 2.072 3.728×10-6 L1-LS/MAFEM( α =70%)(10.57,10.81,19.53) 1.629 5.728×10-4 L1-LS/MAFEM( α =40%)(9.94,12.18,19.27) 0.353 9.791×10-4 L1-LS/PRS-MAFEM (9.83,12.13,19.93) 0.198 9.899×10-4
Table 3. Reconstruction results of double light source simulation
View tableTable 3. Reconstruction results of double light source simulation
Method Target Reconstruction position center /mm d LE /mmReconstruction density /(nW·mm-3 ) L1-LS S1 (10.55,10.31,18.97) 2.378 1.851×10-5 S2 (11.12,10.89,19.29) 2.677 9.920×10-6 L1-LS/MAFEM( α =70%)S1 (9.69,9.22,19.49) 1.119 3.738×10-3 S2 (9.99,11.63,18.71) 1.346 1.554×10-3 L1-LS/MAFEM( α =40%)S1 (9.51,8.43,18.28) 0.887 2.103×10-3 S2 (10.21,11.88,19.11) 1.359 2.260×10-3 L1-LS/PRS-MAFEM S1 (9.51,8.43,18.27) 0.887 7.698×10-4 S2 (8.83,12.73,19.11) 0.309 1.078×10-3
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Junlong Huang, Jingjing Yu. Bioluminescence Tomography Based on Multilevel Adaptive Finite Element Method[J]. Chinese Journal of Lasers, 2018, 45(6): 0607003
Paper Information
Category: biomedical photonics and laser medicine
Received: Dec. 15, 2017
Accepted: --
Published Online: Jul. 5, 2018
The Author Email: Jingjing Yu (yujj@snnu.edu.cn)
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