Thermal modeling of lesion growth with radiofrequency ablation devices

Table 2 Maximum Electrical Conductivity (Siemens/meter)¹ Values represent the maximum electrical conductivity attained in tissue for the computational models.

Source Voltage (Volts)	0%² Perfusion (0.0 × 10^-3 m_b ³/m_t ³/s)	20%² Perfusion (1.3 × 10^-3 m_b ³/m_t ³/s)	40%² Perfusion (2.6 × 10^-3 m_b ³/m_t ³/s)	60%² Perfusion (3.8 × 10^-3 m_b ³/m_t ³/s)	80%² Perfusion (5.1 × 10^-3 m_b ³/m_t ³/s)	100%² Perfusion (6.4 × 10^-3 m_b ³/m_t ³/s)
2.5	0.144	0.144	0.144	0.144	0.143	0.143
5.0	0.147	0.147	0.146	0.146	0.146	0.146
7.5	0.153	0.152	0.151	0.151	0.150	0.150
10.0	0.162	0.160	0.159	0.158	0.157	0.156
12.5	0.173	0.170	0.168	0.167	0.165	0.164
15.0	0.189	0.185	0.181	0.179	0.177	0.175
17.5	0.210	0.203	0.198	0.194	0.191	0.189
20.0	0.238	0.228	0.221	0.215	0.210	0.207
22.5	0.274	0.262	0.251	0.244	0.237	0.232
25.0	0.321	0.306	0.293	0.282	0.273	0.265
27.5	0.383	0.364	0.348	0.334	0.321	0.312
30.0	0.463	0.440	0.419	0.401	0.385	0.372

¹ – The maximum electrical conductivity for the case of 0% perfusion was located along the center of the conducting electrode. In all other cases, the maximum temperature occurred at the tip of the probe; ² – The units for tissue perfusion are cubic meters of blood (m_b ³) per cubic meter of tissue (m_t ³) per second.

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