Table 4.
Results of the RFA for different values of applied voltage on a 4-cm spherical zone in case of non-doped tissue (ND) and two types of dopants: saline solution (0.9% NaCl) and AuNPs (0.01 wt%)
| Dopant | Zi (Ω) | 50 V | 70 V | 90 V | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| t100-Ω | B | A | t100-Ω | B | A | t100-Ω | B | A | ||
| ND | 87.7 | 440 | 2.7 | 4.4 | 94.5 | 1.6 | 3.8 | 31.5 | 1.0 | 3.7 |
| NaCl | ||||||||||
| 1% | 81.4 | 400 | 2.7 | 4.4 | 87 | 1.6 | 3.9 | 30 | 1.2 | 3.6 |
| 2% | 76 | 367 | 2.6 | 4.4 | 80 | 1.7 | 3.9 | 29 | 1.2 | 3.6 |
| 5% | 64 | 306 | 2.5 | 4.3 | 66 | 1.7 | 3.9 | 25.5 | 1.2 | 3.6 |
| 10% | 52 | 269 | 2.5 | 4.4 | 55 | 1.7 | 3.8 | 22.5 | 1.2 | 3.4 |
| AuNPs | ||||||||||
| 1% | 69 | 327 | 2.5 | 4.4 | 71 | 1.7 | 3.9 | 27 | 1.2 | 3.6 |
| 2% | 58 | 287 | 2.5 | 4.4 | 60 | 1.7 | 3.9 | 23.5 | 1.2 | 3.6 |
| 5% | 42 | 245 | 2.5 | 4.4 | 50.5 | 1.6 | 3.8 | 20.5 | 1.2 | 3.6 |
| 10% | 31.9 | 265 | 2.6 | 4.9 | 54.5 | 1.7 | 3.9 | 21.5 | 1.2 | 3.6 |
Zi: initial impedance; t100-Ω: time until roll-off (in s); B and A: transverse and axial diameters (in cm) of the coagulation zone, respectively. The different values of concentration (from 1 to 10% are volume fraction)