Figure 2c:
Photographs of treated muscle at gross pathologic examination show ablation shape. (a) Insertion of electrodes exactly parallel to the muscle fibers produced the largest cross-sectional ablation zone (6.2 cm ± 0.3 × 4.2 cm ± 0.3 for 90 pulses, 70 µsec per pulse at 2000 V). Comparison of (b) in-plane versus (c) perpendicular orientation ablation for similar IRE parameters shows smaller but symmetric zone of 4.2 cm ± 0.8 × 3.0 cm ± 0.5 for b but a cross-shaped ablation zone for c.