Combining various projection access schemes with the algebraic reconstruction technique for diffuse optical tomography

Xavier Intes; Vasilis Ntziachristos; Arjun G. Yodh; Britton Chance

doi:10.1117/12.462533

12 April 2002 Combining various projection access schemes with the algebraic reconstruction technique for diffuse optical tomography

Xavier Intes, Vasilis Ntziachristos, Arjun G. Yodh, Britton Chance

Author Affiliations +

Proceedings Volume 4536, International Workshop on Photonics and Imaging in Biology and Medicine; (2002) https://doi.org/10.1117/12.462533
Event: International Workshop on Photonics and Imaging in Biology and Medicine, 2001, Wuhan, China

Abstract

Diffuse Optical Tomography (DOT) is a typical inverse problem that aims to retrieve internal chromophore distributions noninvasively. Algebraic Reconstructions Techniques (ART) are one of the popular image reconstruction techniques used in DOT. We investigate in this report the influence of the order in which data are accessed in ART. Simulations mimicking breast tissues in transmission geometry with contrast agent tumor enhancement were used to evaluate the image quality of the diverse projection access investigated. We show that by selecting proper projection access order, the convergence speed can be significantly improved when ART is used to perform DOT. Moreover, low- contrast detection is improved.

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Xavier Intes, Vasilis Ntziachristos, Arjun G. Yodh, and Britton Chance "Combining various projection access schemes with the algebraic reconstruction technique for diffuse optical tomography", Proc. SPIE 4536, International Workshop on Photonics and Imaging in Biology and Medicine, (12 April 2002); https://doi.org/10.1117/12.462533

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