Table 2.
Supratentorial pathology: indications and technique.
| n = 54 | |
|---|---|
| Indication | |
| functional | 24 (44%) |
| intra-axial tumors | 53 (98%) |
| extra-axial tumors | 21 (39%) |
| vascular | 21 (39%) |
| Techniques | |
| MEPs | 51 (94%) |
| SSEPs | 48 (89%) |
| Direct Cortical stimulation (DCS) | 46 (85%) |
| Subcortical stimulation (SCS) | 43 (80%) |
| Phase reversal | 38 (70%) |
| Electrocorticography (ECoG) | 33 (61%) |
| D wave | 3 (5%) |
| EMG | 2 (4%) |
| SCS with ultrasonic surgical aspirator | 1 (2%) |
| Oculomotor nerves | 1 (2%) |
| Cortico-cortical evoked potential (CCEP) | 1 (2%) |
| Deep brain stimulation (DBS) | 1 (2%) |