| Requesting Department | Numbers (N = 468) | Percentage (%) |
| Not Known | 225 | 48.1 |
| Neurology | 150 | 32.1 |
| Neurosurgery | 34 | 7.3 |
| Orthopaedics and Traumatology | 16 | 3.4 |
| Ophtalmology | 12 | 2.6 |
| Surgical Oncology | 8 | 1.7 |
| Gynaeco-obstetrics | 7 | 1.5 |
| General Médicine | 4 | 0.9 |
| General Surgery | 3 | 0.6 |
| Cardiology | 2 | 0.4 |
| ENT | 2 | 0.4 |
| Paediatrics | 2 | 0.4 |
| Gynaecological Surgery | 1 | 0.2 |
| Endocrinology | 1 | 0.2 |
| ICU | 1 | 0.2 |