HEATING EFFECT OF THERMALLY SIGNIFICANT BLOOD VESSELS IN PERFUSED TUMOR TISSUE DURING CRYOSURGERY
This article focuses on the heating effects of thermally significant blood vessels during cryosurgery process. The thermal model here bases on the Pennes bio-heat transfer equation describing the heat transfer of perfused tumor tissue and the energy transport equation governing the heat convection and diffusion of the blood flow. The explicit finite different method is used to solve the transient equation for the temperature field of a perfused tumor tissue encompassing a blood vessel in 3-D configuration during cryosurgery. The second boundary condition is performed at the boundary of the blood vessels and the tissue. As a result of simulation, the thermal stability effect of the flowing blood can be seen clearly at the vicinity of the vessels. The volume of the frozen tissue in the case with the significant vessels is much smaller than that in the case without the vessels in a typical cryosurgery process. To ensure the curative effect during the cryosurgery, the significant blood vessels near the tumor is needed to be considered.
Zhifeng LIU G.ZHAO Y.H.HUANG T.YE S.X.CHENG
Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, P.R.Ch
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）