Table 1.
Electrophysiological data and effects of interest for BOLD modelling: types of icEEG electrodes used and number of IED events included in the BOLD models. D: depth electrode contacts, E: electrocorticography (ECoG) contacts, R: right, L: left, A: anterior, M: medial, P: posterior, I: inferior, and S: superior.
| Patient ID |
A |
B |
C |
D |
E |
F |
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|---|---|---|---|---|---|---|---|---|---|---|
| Type of epilepsy | Temporal lobe epilepsy | Frontal lobe epilepsy | ||||||||
| Summary of the icEEG implantation | - R and L amygdalae (R A) - R and L hippocampi |
- R A and P insula - R A (R ASMA) and P (R PSMA) supplementary sensorimotor areas - R A, M and P cingulum (P C) |
- L superior (SFG), middle (MFG) and inferior frontal gyrus - L precentral gyrus - L central sulcus and part of postcentral sulcus - L superior frontal sulcus - L postcentral regions |
- L frontal lobe (laterally and inferiorly) - L M (MFG) and I (IFG) frontal gyrus - L frontal pole |
- L frontal lobe (laterally and inferiorly) - L M (MFG) and I (IFG) frontal gyrus - L temporal lobe |
- L frontal and parietal convexity - L frontal pole - L S frontal gyrus (SFG) - L I frontal gyrus - L mesial frontal surface |
||||
| Number of icEEG contacts | Five 6-contact depths | Two 6-contact depths, three 8-contact depths, two 10-contact depths | One 8 × 8 contact grid, two 4-contact depths, one 2 × 8 contact grid | One 8 × 8 contact grid, one 2 × 8 contact grid, two 6-contact depths, two 6-contact strips | One 6 × 8 contact grid, two 2 × 8 contact grids, one 4 × 8 high-density contact grid, two 6-contact strips, two 6-contact depths | One 8 × 8 contact grid, one 2 × 8 contact grid, one 8-contact strip, one 6-contact strip, one high-density 4 × 8 contact grid | ||||
| Number of fMRI sessions | 2 | 2 | 1 | 1 | 1 | 2 | ||||
| Type of contact | D | D | E | D | E | D | E | |||
| Distance between the contacts (mm) | 5 | 10 | 5 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Number of focal IED classes | 1 | 3 | 2 | 2 | 1 | 1 | ||||
| Location of COI | R A | R P SMA | R A S MA | R P C | L P SFG and MFG | L P SFG and MFG | L IFG and MFG | L lateral orbitofrontal | L IFG and MFG | L SFG |
| Irritative Zone | R and L temporal lobes | R ASMA and R PSMA | R I parietal and M frontal gyrus | L P SFG and MFG | L IFG and MFG | L lateral orbitofrontal | L IFG and MFG | L SFG (lateral and medial) | ||
| IED classes | Focal plus more widespread | Focal | Focal plus more widespread | Focal | Focal plus more widespread | Focal | ||||
| Set of events of interest | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 | S10 |
| Number of IEDs at the COI | 1630 | 209 | 470 | 253 | 397 | 613 | 993 | 194 | 887 | 191 |
| IcEEG feature (mean ± standard deviation) | ||||||||||
| Amplitude (μV) | 71.15 ± 91.14 | 368.60 ± 395.52 | 78.62 ± 62.34 | 139.43 ± 241.95 | 101.38 ± 72.52 | 19.40 ± 28.51 | 47.11 ± 40.67 | 78.73 ± 66.86 | 41.18 ± 26.64 | 66.19 ± 53.36 |
| Slope (μV / s) | 4.67 ± 6.96 | 12.68 ± 18.04 | 6.45 ± 5.38 | 4.94 ± 8.75 | 7.85 ± 6.09 | 2.48 ± 3.77 | 3.77 ± 3.22 | 6.15 ± 5.68 | 3.46 ± 2.25 | 5.83 ± 4.96 |
| Width (FWHM) (ms) | 23.19 ± 6.83 | 40.89 ± 10.95 | 19.47 ± 4.08 | 48.68 ± 21.24 | 10.46 ± 2.10 | 8.91 ± 4.03 | 9.88 ± 2.90 | 10.81 ± 2.57 | 11.29 ± 4.49 | 21.30 ± 6.33 |
| Energy (μV s) | 1.78 ± 2.27 | 16.00 ± 16.51 | 1.48 ± 1.33 | 7.78 ± 12.97 | 2.06 ± 1.48 | 0.31 ± 0.49 | 1.01 ± 1.01 | 1.71 ± 1.58 | 1.03 ± 0.66 | 1.40 ± 1.27 |
| Spatial field spread (a.u.) | 7.06 ± 1.61 | 14.85 ± 2.88 | 13.24 ± 2.47 | 14.18 ± 2.18 | 10.93 ± 2.76 | 9.45 ± 2.42 | 10.27 ± 1.70 | 9.63 ± 2.00 | 7.38 ± 1.61 | 17.32 ± 3.59 |