TABLE III.
BOLD changes time course and location of first significant activation
| Pts | Expected focus location | Activation
|
Deactivation
|
||||
|---|---|---|---|---|---|---|---|
| Volume of first activation (number of voxels) | Start (s) | End (s) | First activation location | Start (s) | End (s) | ||
| 1 | Bil F with L predominance | 119 | 7 | 17 | Bil F sup gyrus, ant. cingulate area. | 5 | 17 |
| 2 | L mesial T | 18 | 5 | 19 | L post hippocampus and parahippocampus gyrus | 9 | 15 |
| 3 | R TPO | 6 | 7 | 27 | R O | 7 | 31 |
| 4 | R TPO with fast contralateral propagation | 150 | 5 | 37 | R hippocampus, R and L collateral sulcus, R T pole, R sup T gyrus | 9 | 41 |
| 5 | Bil O | 10 | 13 | 21 | L O (in the heterotopic cortex) and post T | 11 | 21 |
| 6 | R TP, in the lesion | 34 | 3 | 21 | R TPO (in the lesion) | 3 | 23 |
| 7 | R F | 9 | 7 | 15 | R F (in the suspected lesion) | 9 | 17 |
| 8 | R FC, around the lesion | 5 | 3 | 45 | R precuneus at the bottom of the metastasis | 7 | 49 |
| 9 | R FC, around the lesion | 18 | 3 | 19 | R FT, around the lesion | 5 | 21 |
| 10 | FT (side hard to define, R hemisphere involved early in the seizure process) | 17 | 3 | 47 | R post. T | 9 | 49 |
| Mean ± SD | 38.6 ± 51.7 | 5.6 ± 3.1 | 26.8 ± 11.9 | 7.4 ± 2.4 | 28.3 ± 13.3 | ||
The start and end times represent the time of the F-map; for instance, a start time at 5 s represents a BOLD change occurring at the same time as the EEG onset, given the 5.4 s hemodynamic delay.
R, right; L, left; Bil, bilateral; T, temporal; F, frontal; C, central; P, parietal; O, occipital.