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Paper Abstract

We propose a simple and reliable solid phantom for mimicking localized absorption changes within a diffusive medium. The phantom is based on the Equivalence Relation stating that any realistic absorption inhomogeneity can be mimicked by a totally absorbing sphere of adequate volume. Applying this concept, we constructed a solid phantom holding a movable black inclusion to be positioned beneath the source-detector pair (perturbed case) or far from it (unperturbed case). Different absorption perturbations can be mimicked by changing the volume and the position of the black object both in transmittance and reflectance configuration. Time-resolved measurements of transmittance images and a lateral reflectance scan are presented.

Paper Details

Date Published: 6 March 2015
PDF: 6 pages
Proc. SPIE 9325, Design and Performance Validation of Phantoms Used in Conjunction with Optical Measurement of Tissue VII, 932505 (6 March 2015); doi: 10.1117/12.2084789
Show Author Affiliations
Antonio Pifferi, Politecnico di Milano (Italy)
Alessandro Torricelli, Politecnico di Milano (Italy)
Rinaldo Cubeddu, Politecnico di Milano (Italy)
CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Giovanna Quarto, Politecnico di Milano (Italy)
Rebecca Re, Politecnico di Milano (Italy)
Sanathana Konugolu Venkata Sekar, Politecnico di Milano (Italy)
Lorenzo Spinelli, CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Andrea Farina, CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Fabrizio Martelli, Univ. degli Studi di Firenze (Italy)
Heidrun Wabnitz, Physikalisch-Technische Bundesanstalt (Germany)


Published in SPIE Proceedings Vol. 9325:
Design and Performance Validation of Phantoms Used in Conjunction with Optical Measurement of Tissue VII
David W. Allen; Jean-Pierre Bouchard, Editor(s)

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