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Related Experiment Video

Updated: Jun 30, 2026

Diffuse Optical Spectroscopy for the Quantitative Assessment of Acute Ionizing Radiation Induced Skin Toxicity Using a Mouse Model

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Published on: May 27, 2016

Comparative evaluation of two simple diffuse reflectance models for biological tissue applications.

George Zonios¹, Ioannis Bassukas, Aikaterini Dimou

¹Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece. gzonios@alum.mit.edu

|September 23, 2008

Summary

This study compares two diffuse reflectance models for biological tissues. Both diffusion theory and a semi-empirical model effectively analyze light interactions in tissue phantoms and human skin using optical fiber probes.

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Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy

Published on: August 22, 2018

Area of Science:

Biomedical Optics
Biophotonics
Tissue Optics

Background:

Accurate modeling of light propagation in biological tissues is crucial for non-invasive optical diagnostics.
Diffuse reflectance spectroscopy relies on models to interpret light-tissue interactions.
Existing models vary in complexity and underlying physical principles.

Purpose of the Study:

To comparatively evaluate two distinct diffuse reflectance models for biological tissue applications.
To assess the suitability of diffusion theory and a semi-empirical model for optical fiber-based measurements.
To determine the applicability and validity range of these models in biological samples.

Main Methods:

Comparative analysis of two diffuse reflectance models: a diffusion theory implementation and a semi-empirical model.
Experimental validation using tissue phantoms and ex vivo human skin.
Utilized a standard six-around-one optical fiber probe for diffuse reflectance measurements.

Main Results:

Both the diffusion theory and semi-empirical models demonstrated suitability for diffuse reflectance measurements with optical fiber probes.
The study provides insights into the potential and applicability of each model.
The validity range for both models in biological tissue applications was illustrated.

Conclusions:

Simple diffuse reflectance models, including diffusion theory and semi-empirical approaches, are effective for biological tissue analysis.
Optical fiber probes are compatible with these modeling techniques for in vivo and ex vivo studies.
The findings support the use of these models in biomedical optics applications for tissue characterization.