Table 1.
Irreversible electroporation (IRE) ablations created with two monopolar probes positioned 2 cm apart in swine liver
| Location | n | Exposurea | Voltage (V/cm) | Reverse polarityb | Ablation zone (cm)c |
|---|---|---|---|---|---|
| Intra-hepatic | 9 | 2.5 cm | 2500 | yes | 2.95 ± 0.31 × 1.5 ± 0.44 |
| Intra-hepatic | 3 | 2.5 cm | 3000 | No | 2.27 ± 0.23 × 1.5 ± 0.2 |
| Intra-hepatic | 4 | 2 cm | 3000 | yes | 3.25 ± 0.35 × 1.45 ± 0.21 |
| Liver hilum | 4 | 2 cm | 3000 | yes | 4.45 ± 0.07 × 1.8 ± 0 |
a
Exposure refers to the length of the electrode that is active during delivery of the treatment.
b
Reverse polarity refers to repeating the IRE treatment without repositioning the electrodes but after reversing the polarity of the electrodes.
c
Width and height of the ablation zones were measured after triphenyltetrazolium chloride staining and fixation.