TY - JOUR
T1 - Using ANSYS for three-dimensional electrical-thermal models for radio-frequency catheter ablation
AU - Tungjitkusolmun, Supan
AU - Cao, Hong
AU - Tsai, Jang Zern
AU - Webster, John G.
PY - 1997
Y1 - 1997
N2 - A three-dimensional finite element model was developed using ANSYS, a commercial finite element analysis software. The effect of temperature-dependent electrical and thermal conductivities to the FE model which incorporated cardiac muscle, blood, electrode and catheter body, was investigated in this study. Computer simulations were performed to calculate the temperature distribution during RF ablation. We compared the results of the two cases. For the first case, we used constant properties of the cardiac muscle. The other case had varying temperature dependent properties. The maximum temperatures found in the cardiac tissue for both cases are significantly different. The lesion depth and volume were larger for the second case. However, the locations of the maximum temperature of both cases were the same. A careful examination of the heat-transfer system during RF ablation is needed.
AB - A three-dimensional finite element model was developed using ANSYS, a commercial finite element analysis software. The effect of temperature-dependent electrical and thermal conductivities to the FE model which incorporated cardiac muscle, blood, electrode and catheter body, was investigated in this study. Computer simulations were performed to calculate the temperature distribution during RF ablation. We compared the results of the two cases. For the first case, we used constant properties of the cardiac muscle. The other case had varying temperature dependent properties. The maximum temperatures found in the cardiac tissue for both cases are significantly different. The lesion depth and volume were larger for the second case. However, the locations of the maximum temperature of both cases were the same. A careful examination of the heat-transfer system during RF ablation is needed.
UR - http://www.scopus.com/inward/record.url?scp=0031294598&partnerID=8YFLogxK
M3 - 會議論文
AN - SCOPUS:0031294598
SN - 0589-1019
VL - 1
SP - 161
EP - 164
JO - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
JF - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
T2 - Proceedings of the 1997 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Y2 - 30 October 1997 through 2 November 1997
ER -