TABLE I.
Temporal evolution of tissue contraction during microwave ablation. Data provided as mean ± standard error of the mean.
| Total displacement | Normalized displacements | Total displacement rate | Normalized displacement rate | |||
|---|---|---|---|---|---|---|
| Location (mm) | Peak (mm) | T63% (min)a | Peak (%) | T63% (min) | Peak (mm/min) | Peak (%/min) |
| Radially | ||||||
| r = 5 | 1.90 ± 0.19 | 5.0 | 38.1 ± 3.9 | 5.0 | 0.36 ± 0.29 | 7.12 ± 5.94 |
| r = 10 | 3.34 ± 0.32 | 5.0 | 33.4 ± 3.1 | 5.0 | 0.68 ± 0.40 | 6.82 ± 4.09 |
| r = 15 | 3.83 ± 0.48 | 4.5 | 25.6 ± 3.6 | 5.0 | 0.71 ± 0.49 | 4.77 ± 3.32 |
| Longitudinally | ||||||
| z = − 5 | 1.88 ± 0.35 | 4.5 | 37.6 ± 7.1 | 4.5 | 0.71 ± 0.29 | 14.30 ± 6.74 |
| z = − 15 | 4.05 ± 0.28 | 4.5 | 27.0 ± 1.9 | 4.5 | 1.22 ± 0.33 | 8.14 ± 2.60 |
| z = − 25 | 6.00 ± 0.54 | 4.0 | 23.9 ± 2.1 | 4.0 | 1.21 ± 0.12 | 4.20 ± 1.63 |
a
T63% is the time to reach 63% of the peak value.