Phys Med Biol. 2002 Jan 7;47(1):N1-10.

Projection access order in algebraic reconstruction technique for diffuse optical tomography.

Intes X, Ntziachristos V, Culver JP, Yodh A, Chance B.

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Department of Biophysics and Biochemistry, University of Pennsylvania, Philadelphia 19104, USA. intes@mail.med.upenn.edu

Abstract

Algebraic reconstruction technique (ART) is one of the popular image reconstruction techniques used in diffuse optical tomography (DOT). We investigate in this note the influence of the order in which data are accessed in ART. Simulations mimicking breast tissues in transmission geometry with contrast agent tumour 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.

PMID:: 11814231; [PubMed - indexed for MEDLINE]

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