Table 3.
Comparison of expected ablations between manual and CAP‐generated trajectories for individual anatomical structures represented as absolute volumes (mm3) and as percentage of the anatomical volume at baseline
| Structure | Anatomical volume (mm3) (mean ± SD) | Manual trajectory ROI volume ablated (mm3) (mean ± SD) | Manual trajectory % ROI ablated (mean ± SD) | CAP trajectory ROI volume ablated (mm3) (mean ± SD) | CAP trajectory % ROI ablated (mean ± SD) | P value |
|---|---|---|---|---|---|---|
| Amygdala | 1648.19 ± 359.53 | 739.84 ± 372.29 | 45.80 ± 20.45 | 994.03 ± 318.77 | 61.16 ± 15.82 | .0004a |
| Hippocampus | 2987.22 ± 477.36 | 2003.28 ± 565.33 | 67.68 ± 17.55 | 2079.32 ± 488.46 | 70.18 ± 14.44 | .6152 |
| AHC | 4792.43 ± 735.75 | 2748.30 ± 771.30 | 57.82 ± 15.05 | 3282.49 ± 604.62 | 69.16 ± 11.54 | .0075a |
| ENCx | 2318.75 ± 562.01 | 246.85 ± 271.41 | 11.35 ± 13.85 | 212.89 ± 270.77 | 8.87 ± 10.77 | .7005 |
| PHG | 3023.94 ± 506.75 | 621.94 ± 495.06 | 20.77 ± 16.15 | 358.60 ± 258.02 | 12.56 ± 9.78 | .0243a |
| Total | 10135.12 ± 1395.68 | 3686.26 ± 959.25 | 36.73 ± 9.76 | 3932.00 ± 793.52 | 39.31 ± 8.73 | .3116 |
| Residual (unablated) depth of MHH (mm) | N/A | 4.45 ± 1.58 | N/A | 1.19 ± 1.37 | N/A | <.0001a |
| Distance of trajectory from brainstem (mm) | N/A | 11.75 ± 2.81 | N/A | 9.90 ± 2.18 | N/A | .0052a |
AHC, amygdalohippocampal complex; ENCx, entorhinal cortex; MHH, mesial hippocampal head; PHG, parahippocampal gyrus.
a
Denotes statistical significance with P < .05.