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Correction to: Inverse heat transfer analysis in detecting tissue optical properties using laser.

Lasers in medical science·2019

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Inverse heat transfer analysis in detecting tissue optical properties using laser.

Khalid Salem Shibib¹, Dhuha Shaker²

¹Laser and Optoelectronics Engineering Department, University of Technology, Baghdad, Iraq. profkhalidsalem@gmail.com.

Lasers in Medical Science

|March 17, 2019

Summary

A novel method uses laser-induced heating and thermocouple measurements to determine tissue optical properties. This technique accurately measures absorption and scattering coefficients, crucial for understanding tissue light interaction.

Keywords:

Inverse heat transfer analysis Laser Tissue optical properties

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Area of Science:

Biomedical Optics
Thermal Analysis
Tissue Optics

Background:

Accurate measurement of tissue optical properties is essential for various biomedical applications.
Existing methods may have limitations in precision or scope.
Non-invasive techniques are highly desirable for in-vivo tissue analysis.

Purpose of the Study:

To develop and validate a new methodology for measuring optical properties of homogeneous tissues.
To utilize laser-induced thermal response for optical property determination.
To extend the method for calculating multiple optical parameters.

Main Methods:

Employing a laser beam to induce localized heating in homogeneous tissue.
Measuring the induced temperature rise using a high-accuracy thermocouple.
Comparing experimental temperature data with finite element method (FEM) simulations.
Utilizing the Levenberg-Marquardt algorithm for iterative optimization of optical properties.

Main Results:

The methodology accurately determines the absorption coefficient and reduced scattering coefficient of tissues.
The method was successfully extended to derive three optical parameters: absorption coefficient, scattering coefficient, and anisotropy.
High accuracy in temperature readings ( < 0.4% error) is critical for reliable results.

Conclusions:

The proposed laser-induced thermography method offers an accurate approach to quantifying tissue optical properties.
This technique provides a valuable tool for both research and clinical applications requiring precise optical characterization of tissues.
Further refinement may focus on reducing the stringent thermocouple accuracy requirement.