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Proceedings Paper

National Institute of Standards and Technology measurement service of the optical properties of biomedical phantoms: current status
Author(s): Paul Lemaillet; Catherine C. Cooksey; Zachary H. Levine; Adam L. Pintar; Jeeseong Hwang; David W. Allen
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Paper Abstract

The National Institute of Standards and Technology (NIST) has maintained scales for reflectance and transmittance over several decades. The scales are primarily intended for regular transmittance, mirrors, and solid surface scattering diffusers. The rapidly growing area of optical medical imaging needs a scale for volume scattering of diffuse materials that are used to mimic the optical properties of tissue. Such materials are used as phantoms to evaluate and validate instruments under development intended for clinical use. To address this need, a double-integrating sphere based instrument has been installed to measure the optical properties of tissue-mimicking phantoms. The basic system and methods have been described in previous papers. An important attribute in establishing a viable calibration service is the estimation of measurement uncertainties. The use of custom models and comparisons with other established scales enabled uncertainty measurements. Here, we describe the continuation of those efforts to advance the understanding of the uncertainties through two independent measurements: the bidirectional reflectance distribution function and the bidirectional transmittance distribution function of a commercially available solid biomedical phantom. A Monte Carlo-based model is used and the resulting optical properties are compared to the values provided by the phantom manufacturer.

Paper Details

Date Published: 24 March 2016
PDF: 6 pages
Proc. SPIE 9700, Design and Quality for Biomedical Technologies IX, 970002 (24 March 2016); doi: 10.1117/12.2214569
Show Author Affiliations
Paul Lemaillet, National Institute of Standards and Technology (United States)
Catherine C. Cooksey, National Institute of Standards and Technology (United States)
Zachary H. Levine, National Institute of Standards and Technology (United States)
Adam L. Pintar, National Institute of Standards and Technology (United States)
Jeeseong Hwang, National Institute of Standards and Technology (United States)
David W. Allen, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 9700:
Design and Quality for Biomedical Technologies IX
Ramesh Raghavachari; Rongguang Liang, Editor(s)

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