Investigations on thermography in laser medicine

Christian Freymüller; Maximilian Eisel; Stephan Ströbl; Adrian Rühm; Ronald Sroka

doi:10.1117/12.2527128

22 July 2019 Investigations on thermography in laser medicine

Christian Freymüller, Maximilian Eisel, Stephan Ströbl, Adrian Rühm, Ronald Sroka

Proceedings Volume 11079, Medical Laser Applications and Laser-Tissue Interactions IX; 1107909 (2019) https://doi.org/10.1117/12.2527128
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

Thermography is used in many application areas like non-destructive testing, architecture or zoology. Approaches to use thermography for medical diagnostics are usually focused on the detection of tumors. The usefulness and specificity for this purpose has been debated. Nevertheless it seems reasonable to evaluate the applicability of thermography as a tool for determining temperature distributions on the surface of, e.g., light diffusers or biological tissue in the field of laser medicine. The assessment of tissue-heating in treatments like interstitial photodynamic therapy (iPDT) is of particular interest since additional tissue damage due to tissue heating is usually undesired and has thus to be avoided. Monte Carlo based simulations of the expected heat distribution in tissue are based on idealized setups. They usually omit certain characteristics of fibers, like inhomogeneities in a light diffuser or losses at components such as internal mirrors, that might potentially result in local hot spots and therefore in heating beyond an acceptable temperature. Experimental techniques based on thermocouples, or similar point-based temperature measurement devices, provide only a limited view of the temperature distribution inside or at the surface of the treated tissue. As a high resolution non-contact wide-field technique thermography although has some limitations. We present an evaluation of the usefulness of thermographic methods for recording the heat distribution on tissue and tissue phantom surfaces during laser treatment in an iPDT-like setup and compare the results with Monte Carlo based simulations.

Citation Download Citation

Christian Freymüller, Maximilian Eisel, Stephan Ströbl, Adrian Rühm, and Ronald Sroka "Investigations on thermography in laser medicine", Proc. SPIE 11079, Medical Laser Applications and Laser-Tissue Interactions IX, 1107909 (22 July 2019); https://doi.org/10.1117/12.2527128

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Diffusers

Thermography

Tissues

Monte Carlo methods

Tissue optics

Laser therapeutics

Laser tissue interaction

Show All Keywords

Keywords/Phrases

Search In:

Publication Years