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Proceedings Paper

Use of phosphorescent and fluorescent dyes for lifetime-based imaging within tissues
Author(s): Alvin U. Chen; Eva Marie Sevick-Muraca
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Paper Abstract

The use of fluorescent and phosphorescent dyes has long been established in microscopy and bio-assays for rapid and accurate biochemical spectroscopy. In this work, we explore extension of these dyes for in vivo tissue spectroscopy. Using a theoretical model for the time-dependent light propagation through scattering media, we investigate the coupling of light propagation and re-emission kinetics for florescent and phosphorescent dyes delivered deep within tissues. Our results show that the use of phosphorescent dyes can provide spectroscopy or localization of specific tissue compartments, but may be information-poor for localized spectroscopy or imaging. While re-emitted fluorescence signals contain contributions owing to both light scattering and kinetics, they do contain the necessary information for localized spectroscopy.

Paper Details

Date Published: 18 August 1997
PDF: 10 pages
Proc. SPIE 2979, Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II, (18 August 1997); doi: 10.1117/12.280239
Show Author Affiliations
Alvin U. Chen, Purdue Univ. (United States)
Eva Marie Sevick-Muraca, Purdue Univ. (United States)


Published in SPIE Proceedings Vol. 2979:
Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II
Britton Chance; Robert R. Alfano, Editor(s)

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