Volume 8, Issue 4 (lasers in medicine 2012)
lmj 2012, 8(4): 15-24 |
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Study and Simulation of LITT in Biological Tissue with Dual Reciprocity Boundary Element Method. lmj 2012; 8 (4) :15-24
URL: http://icml.ir/article-1-238-en.html
URL: http://icml.ir/article-1-238-en.html
Abstract: (12473 Views)
Background: Laser Interstitial ThermoTherapy(LITT) is a minimally invasive surgical method to treat tumors in liver. Modeling laser effects on tissue in LITT has many advantages over other heat monitoring methods such as studying light and heat transfer in tissue, changing the effective parameters of the laser and lower cost. Among different numerical methods, Dual Reciprocity Boundary Element Method (DRBEM) is the newest method used by researchers to solve problems of heat transfer in tissue.
Material and Methods: In this study the temperature increase in liver tissue is analyzed with DRBEM. Monte Carlo method with variable step size and implicit capture technique is used for light transport in tissue. The results of the DRBEM is also compared with Finite Element Method(FEM) results.
Results: The results showed that both methods converge to similar results and the differences in temperatures are less than 1˚C. Due to one dimension decrease of the problem in DRBEM, the solving time increases comparing with other numerical methods like FEM.
Conclusion: DRBEM is an accurate and fast method to study heat transfer in biological tissue in laser-tissue interaction.
Material and Methods: In this study the temperature increase in liver tissue is analyzed with DRBEM. Monte Carlo method with variable step size and implicit capture technique is used for light transport in tissue. The results of the DRBEM is also compared with Finite Element Method(FEM) results.
Results: The results showed that both methods converge to similar results and the differences in temperatures are less than 1˚C. Due to one dimension decrease of the problem in DRBEM, the solving time increases comparing with other numerical methods like FEM.
Conclusion: DRBEM is an accurate and fast method to study heat transfer in biological tissue in laser-tissue interaction.
Keywords: Dual Reciprocity Boundary Element Method, LITT, Laser-tissue interaction, Monte Carlo Method
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