Source reconstruction for spectrally-resolved bioluminescence tomography with sparse a priori information.
Source reconstruction for spectrally-resolved bioluminescence tomography with sparse a priori information.
复制标题
具有稀疏先验信息的光谱分辨生物发光断层扫描的源重建。
DOI:
10.1364/oe.17.008062
复制
发表时间:
2009-05-11
期刊:
影响因子:
3.8
通讯作者:
Chatziioannou AF
中科院分区:
文献类型:
--
作者:
Lu Y;Zhang X;Douraghy A;Stout D;Tian J;Chan TF;Chatziioannou AF
Through restoration of the light source information in small animals in vivo, optical molecular imaging, such as fluorescence molecular tomography (FMT) and bioluminescence tomography (BLT), can depict biological and physiological changes observed using molecular probes. A priori information plays an indispensable role in tomographic reconstruction. As a type of a priori information, the sparsity characteristic of the light source has not been sufficiently considered to date. In this paper, we introduce a compressed sensing method to develop a new tomographic algorithm for spectrally-resolved bioluminescence tomography. This method uses the nature of the source sparsity to improve the reconstruction quality with a regularization implementation. Based on verification of the inverse crime, the proposed algorithm is validated with Monte Carlo-based synthetic data and the popular Tikhonov regularization method. Testing with different noise levels and single/multiple source settings at different depths demonstrates the improved performance of this algorithm. Experimental reconstruction with a mouse-shaped phantom further shows the potential of the proposed algorithm.
登录
查看更多内容
影响因子:
3.8
作者:
Lv, Yujie;Tian, Jie;Li, Hui
通讯作者:
Li, Hui
影响因子:
46.9
作者:
Ntziachristos, V;Ripoll, J;Weissleder, R
通讯作者:
Weissleder, R
影响因子:
3
作者:
Donoho, DL
通讯作者:
Donoho, DL
影响因子:
1.9
作者:
PRAHL, SA;VANGEMERT, MJC;WELCH, AJ
通讯作者:
WELCH, AJ
影响因子:
3.5
作者:
Chaudhari, AJ;Darvas, F;Leahy, RM
通讯作者:
Leahy, RM