<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The determination of three-dimensional (3D) temperature distribution within tissue during thermoablation is necessary to estimate procedure efficiency. The use of a thermo-camera combined with finite element modelling is discussed.The temperature distributions in a metal phantom and an animal tissue sample were simulated. In the real experiment, temperatures were measured around the heating probe by a thermo-resistor set and the temperature distributions on samples' surface were acquired by a thermo-camera. The temperatures measured in the experiment were compared with the simulated ones. The differences between the measured and simulated temperatures were lower than 1.3°C and 3.0°C for a metal phantom and tissue sample, respectively.Good agreement was achieved for homogenous material of well-defined parameters. Higher discrepancies for the tissue sample are due to in-homogeneity and to difficulties with describing tissue thermal properties.The proposed method permits the precise prediction of a 3D temperature distribution in <italic>in-vitro</italic> studies. Potential application for <italic>in-vivo</italic> procedures requires further investigations.</abstract>

The determination of three-dimensional (3D) temperature distribution within tissue during thermoablation is necessary to estimate procedure efficiency. The use of a thermo-camera combined with finite element modelling is discussed.The temperature distributions in a metal phantom and an animal tissue sample were simulated. In the real experiment, temperatures were measured around the heating probe by a thermo-resistor set and the temperature distributions on samples' surface were acquired by a thermo-camera. The temperatures measured in the experiment were compared with the simulated ones. The differences between the measured and simulated temperatures were lower than 1.3°C and 3.0°C for a metal phantom and tissue sample, respectively.Good agreement was achieved for homogenous material of well-defined parameters. Higher discrepancies for the tissue sample are due to in-homogeneity and to difficulties with describing tissue thermal properties.The proposed method permits the precise prediction of a 3D temperature distribution in in-vitro studies. Potential application for in-vivo procedures requires further investigations.

Estimation of temperature distribution with the use of a thermo-camera

Department of Biophysics, Jagiellonian University Medical College, Sw. Lazarza 16, 31-530 Krakow, Poland

Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland

Polish Journal of Medical Physics and Engineering

{"article-title":"Estimation of temperature distribution with the use of a thermo-camera"}

The determination of three-dimensional (3D) temperature distribution within tissue during thermoablation is necessary to estimate procedure efficiency. The use...

Estimation of temperature distribution with the use of a thermo-camera

Publié en ligne: 29 déc. 2008

Pages: 47 - 62

DOI: https://doi.org/10.2478/v10013-008-0005-1

Mots clés
finite element model, non-invasive thermometry, three-dimensional temperature distribution, thermo-camera, tissue temperature measurements

This content is open access.

Estimation of temperature distribution with the use of a thermo-camera

Publié en ligne: 29 déc. 2008

Pages: 47 - 62

DOI: https://doi.org/10.2478/v10013-008-0005-1

Mots clésfinite element model, non-invasive thermometry, three-dimensional temperature distribution, thermo-camera, tissue temperature measurements

This content is open access.

Mots clés
finite element model, non-invasive thermometry, three-dimensional temperature distribution, thermo-camera, tissue temperature measurements