NOTE

Projection access order in algebraic reconstruction technique for diffuse optical tomography

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Published 29 November 2001 • Published under licence by IOP Publishing Ltd
, , Citation Xavier Intes et al 2002 Phys. Med. Biol. 47 N1 DOI 10.1088/0031-9155/47/1/401

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Author affiliations

1 Department of Biophysics and Biochemistry, University of Pennsylvania, Philadelphia, PA 19104, USA

2 Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA

3 Center for Molecular Imaging Research, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA

4 NMR Center, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA

Dates

  1. Received 9 October 2001
  2. Published

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0031-9155/47/1/N1

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.

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10.1088/0031-9155/47/1/401