[1] B. Chance, Acad. Radiol. 8, 209 (2001).

[2] D. Wang, X. Liu, Y. Chen, and J. Bai, Chin. Opt. Lett. 8, 82 (2010).

[3] B. W. Rice, M. D. Cable, and M. B. Nelson, J. Biomed. Opt. 6, 432 (2001).

[4] G. Wang, Y. Li, and M. Jiang, Med. Phys. 31, 2289(2004).

[5] A. J. Chaudhari, F. Darvas, J. R. Bading, R. A. Moats, P. S. Conti, D. J. Smith, S. R. Cherry, and R. M. Leahy, Phys. Med. Biol. 50, 5421 (2005).

[6] H. Dehghani, S. C. Davis, S. Jiang, B. W. Pogue, K. D. Paulsen, and M. S. Patterson, Opt. Lett. 31, 365 (2006).

[7] Y. Lv, J. Tian, W. Cong, G. Wang, W. Yang, C. Qin, and M. Xu, Phys. Med. Biol. 52, 4497 (2007).

[8] J. Feng, K. Jia, G. Yan, S. Zhu, C. Qin, Y. Lv, and J. Tian, Opt. Express 16, 15640 (2008).

[9] J. Feng, K. Jia, C. Qin, G. Yan, S. Zhu, X. Zhang, J. Liu, and J. Tian, Opt. Express 17, 16834 (2009).

[10] Y. Lu, X. Zhang, A. Douraghy, D. Stout, J. Tian, T. F. Chan, and A. F. Chatziioannou, Opt. Express 17, 8062(2009).

[11] L. Jin, Y. Wu, J. Tian, H. Huang, and X. Qu, Chin. Opt. Lett. 7, 614 (2009).

[12] C. Qin, J. Tian, Y. Lv, and W. Yang, Proc. SPIE 6916, 69161K (2008).

[13] J. C. Ye, K. J. Webb, C. A. Bouman, and R. P. Millane. J. Opt. Soc. Am. A 16, 2400 (1999).

[14] A. Genkin, D. D. Lewis, and D. Madigan, Technometrics 49, 291 (2007).

[15] G. Alexandrakis, F. R. Rannou, and A. F. Chatziioannou, Phys. Med. Biol. 50, 4225 (2005).

[16] H. Li, J. Tian, F. Zhu, W. Cong, L. V. Wang, E. A. Hoffman, and G. Wang, Acad. Radiol. 11, 1029 (2004).

[17] C. Kuo, O. Coquoz, T. L. Troy, H. Xu, and B. W. Rice, J. Biomed. Opt. 12, 024007 (2007).