| Grade | Computed Tomography Findings: |
| 1 | No Hemorrhage |
| 2 | Diffused thin film of subarachnoid bleed (vertical films ≤ 1 mm) |
| 3 | Localized clot or thick film of subarachnoid bleed (vertical layers ≥ 1 mm) |
| 4 | ICH or IVH with diffuse or subarachnoid bleed |