1-D steady state analysis of a two-equation coupled system for determination of tissue temperature in liver during radio frequency ablation

Author

Peng, Tingying ; O´Neill, David P. ; Payne, Stephen J.

Author_Institution

Dept. of Eng. Sci., Univ. of Oxford, Oxford, UK

fYear

2009

fDate

3-6 Sept. 2009

Firstpage

3385

Lastpage

3388

Abstract

An analytical solution is provided for a two-equation coupled model for determination of liver tissue temperature during radio frequency ablation in the steady state with one-dimension in space. Both analytical analysis and model simulation were conducted to investigate the effects of two crucial system parameters: blood perfusion rate and convective heat transfer coefficient on the tissue temperature field. The quantitative criteria were also derived, under which the two-equation coupled system can be approximated to a conventional single bio-heat equation system such as the Pennes model.

Keywords

biological tissues; convection; haemorheology; hyperthermia; liver; microwave heating; physiological models; 1D steady state analysis; Pennes model; bio-heat equation system; blood perfusion rate; convective heat transfer coefficient; liver; radio frequency ablation; tissue temperature; two-equation coupled system; Algorithms; Body Temperature; Catheter Ablation; Computer Simulation; Hot Temperature; Humans; Liver; Models, Statistical; Models, Theoretical; Perfusion; Radio Waves; Signal Processing, Computer-Assisted; Temperature; Thermal Conductivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE

Conference_Location

Minneapolis, MN

ISSN

1557-170X

Print_ISBN

978-1-4244-3296-7

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2009.5332813

Filename

5332813