Studying on the Thermal Conductivity Measurement of Biological Tissues
Thermal parameters of biological tissue are important indicators to reveal the capacity of thermal heat transport and heat-carrying and further study of bio-heat transfer mechanisms, and thermal conductivity is one of the basic thermal parameters of biological tissue. This paper achieved a real-time reigning measurement and analysis of thermal conductivity of lean pork, fat, and liver using isothermal heating method: at first, we selected three kinds of biological tissue, each piece of the selection, and put the heat source in the middle position; then, we set five temperature observations which had different distances from the center point, and measured the system power-time curve and the temperature of each point; finally, thermal conductivity data of each point were obtained by the MATLAB processing. The results show that different tissues have different thermal conductivity, and thermal conductivity of lean pork is the largest, followed by liver, and fat minimum; thermal conductivity at different positions within the same tissue are similar. This measurement method and the results have an important significance for developing a deeper study of bio-heat transfer mechanism, the non- destructive temperature reconstruction on tissue, and tumor hyperthermia and so on.
Keywordsbiological tissues thermal conductivity isothermal heating method real-time reigning measurement
Unable to display preview. Download preview PDF.
- 1.Wang, H., Wu, J.: Bio-heat transfer and its medical applications. Journal of Tongji University 25(2), 159–162 (2004)Google Scholar
- 2.Xiao, Q., Liang, P.: Thermal parameters of biological research status of hyperthermia in cancer. Chinese Journal of Medical Imaging 13(1), 48–49 (2005)Google Scholar
- 4.Lu, W., Cheng, G.: Freezing method used to treat surface tumors in 33 cases. Fujian Journal of Medicine 01, 1–6 (1985)Google Scholar
- 5.Chato, J.C.: A method for measurement of the thermal properties of biological material. In: ASME Symp. Ser., New York, pp. 16–25 (1968)Google Scholar
- 6.Xia, Q., Xia, Y., Nan, Q., Peng, J.: Measurement and Analysis of Thermal Physical Properties in Deep Tissue. Beijing Biomedical Engineering 22(1), 37–39 (2003)Google Scholar
- 9.Bowman, H.F.: Estimation of tissue blood flow. In: Shitzer, A., Eberhart, R.C. (eds.) Heat Transfer in Medicine and Biology: Analysis and Application, pp. 193–230. Plemum, New York (1985)Google Scholar
- 10.Chato, J.C.: The Basis of Bio-heat Transfer. Science Press, Beijing (1991)Google Scholar