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Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure

Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure

Published on: February 12, 2018

Experimental verification and validation of a computer model for light-tissue interaction.

Aletta Elizabeth Karsten¹, Ann Singh, Max W Braun

¹National Laser Centre, CSIR, Pretoria, South Africa. akarsten@csir.co.za

Lasers in Medical Science

|May 3, 2011

Summary

Computer simulations accurately predict laser light dose in skin. This research validates a model for precise laser treatment planning, ensuring effective light delivery for medical applications.

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Area of Science:

Biomedical Optics
Medical Physics
Photomedicine

Background:

Laser light is crucial for medical diagnostics and treatments.
Accurate laser dose delivery to the target site is essential for treatment efficacy.
Light scattering and absorption in human skin reduce fluence with depth.

Purpose of the Study:

To validate a computational model for predicting laser fluence within skin.
To assess the accuracy of simulations by comparing them with experimental phantom measurements.

Main Methods:

Prepared liquid and solid phantoms mimicking skin optical properties.
Measured optical properties of phantoms.
Utilized a commercial software package for skin layer simulation.
Measured transmission and reflection using an integrating sphere.

Main Results:

Experimental measurements showed excellent agreement with computer simulations.
The validated model accurately predicts light fluence distribution in simulated skin.

Conclusions:

The developed computational model reliably predicts laser fluence within skin.
This model can be confidently used for optimizing laser treatment parameters and dosimetry.