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Noninvasive Measurement of Thermal Property Parameters of Cylindrical Living Tissues

[+] Author Affiliations
Kai Yue, Xinxin Zhang, Fan Yu

University of Science and Technology – Beijing, Beijing, China

Paper No. HT2005-72592, pp. 881-888; 8 pages
doi:10.1115/HT2005-72592
From:
  • ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
  • Heat Transfer: Volume 1
  • San Francisco, California, USA, July 17–22, 2005
  • Conference Sponsors: Heat Transfer Division and Electronic and Photonic Packaging Division
  • ISBN: 0-7918-4731-4 | eISBN: 0-7918-3762-9
  • Copyright © 2005 by ASME

abstract

A new noninvasive measurement method is proposed to simultaneously determine the thermal parameters of cylindrical living tissues. The corresponding two-dimensional mathematic model is established based on the Pennes’ bioheat transfer equation. With respect to the measuring points on the surface of the given living tissue, the effects of thermal parameters on the temperature variations, the sensitivity coefficients of the key thermal parameters to the model temperatures and the relativities of these sensitivity coefficients are analyzed and calculated. The results show that the thermal parameters concerned can be estimated with high measuring precision and can be simultaneously estimated. The experimental system of the dynamic tissue phantom is established to validate the presented method. A number of experiments are carried out under different conditions and the experimental results indicate that the measured parameters are in good agreement with the reference values.

Copyright © 2005 by ASME

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