Abstract
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.
Original language | English |
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Pages (from-to) | 161-164 |
Number of pages | 4 |
Journal | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings |
Volume | 1 |
State | Published - 1997 |
Event | Proceedings of the 1997 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Chicago, IL, USA Duration: 30 Oct 1997 → 2 Nov 1997 |