| Site | NO |
| Brain stem | 1 |
| Frontal | 14 |
| Fronto parietal | 1 |
| Intra ventricular | 2 |
| Occipital | 2 |
| Parietal | 5 |
| Temporal | 3 |
| Temporoparietal | 3 |
| Thalamic | 4 |