Solid switchable phantom for diffuse optical imaging

Antonio Pifferi; Alessandro Torricelli; Rinaldo Cubeddu; Giovanna Quarto; Rebecca Re; Sanathana Konugolu Venkata Sekar; Lorenzo Spinelli; Andrea Farina; Fabrizio Martelli; Heidrun Wabnitz

doi:10.1117/12.2084789

6 March 2015 Solid switchable phantom for diffuse optical imaging

Antonio Pifferi, Alessandro Torricelli, Rinaldo Cubeddu, Giovanna Quarto, Rebecca Re, Sanathana Konugolu Venkata Sekar, Lorenzo Spinelli, Andrea Farina, Fabrizio Martelli, Heidrun Wabnitz

Author Affiliations +

Proceedings Volume 9325, Design and Performance Validation of Phantoms Used in Conjunction with Optical Measurement of Tissue VII; 932505 (2015) https://doi.org/10.1117/12.2084789
Event: SPIE BiOS, 2015, San Francisco, California, United States

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.

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Antonio Pifferi, Alessandro Torricelli, Rinaldo Cubeddu, Giovanna Quarto, Rebecca Re, Sanathana Konugolu Venkata Sekar, Lorenzo Spinelli, Andrea Farina, Fabrizio Martelli, and Heidrun Wabnitz "Solid switchable phantom for diffuse optical imaging", Proc. SPIE 9325, Design and Performance Validation of Phantoms Used in Conjunction with Optical Measurement of Tissue VII, 932505 (6 March 2015); https://doi.org/10.1117/12.2084789

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KEYWORDS

Absorption

Solids

Transmittance

Scattering

Diffuse optical imaging

Imaging systems

Optical properties

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