Table 1.
Non-significant admission CT characteristics—first 10 days of recording analysis
| Non-significant CT grade systems | Non-significant continuous CT variables |
| Marshall CT grade | MLS |
| Rotterdam CT grade | Number of DAI lesions |
| Helsinki CT grade | Total contusion volume |
| Stockholm CT grade | |
| Non-significant ordinal/binary CT variables | |
| Basal cistern compression (none/any) | Bilateral convexity SDH (no/yes) |
| Basal cistern compression (none/complete) | Any contusion present (no/yes) |
| Basal cistern compression (none/compressed/complete effacement) | EDH (no/yes) |
| Fourth ventricle compression (none/any) | Bilateral EDH (no/yes) |
| Fourth ventricle compression (none/compressed/complete effacement) | IVH (no/yes) |
| Fourth ventricle extreme compression (none/completely effaced) | Cisternal tSAH (no/yes) |
| Lateral ventricle compression (none/mild/complete effacement) | Cisternal tSAH completely filled (no/yes) |
| Tonsillar descent (no/yes) | Cisternal tSAH extent (none/visible/complete filling) |
| Convexity SDH (no/yes) | DAI – CC (no/yes) |
| Tentorial SDH (no/yes) | DAI – BG (no/yes) |
| Falcine SDH (no/yes) | DAI – BS (no/yes) |
BG, basal ganglia; BS, brain stem; CC, corpus callosum; CT, computed tomography; DAI, diffuse axonal injury; EDH, epidural hematoma; IVH, intra-ventricular hemorrhage; MLS, mid-line shift; SC, subcortical; SDH, subdural hematoma