Approach - Brain CT

Works from outside in (scalp → skull → brain), compare side to side

1. Hypo- or hyper- density
2. Grey-white matter differentiation
3. Space-occupying lesion
4. Midline location
5. Sub-arachnoid space preservation
6. Ventricles

Danger Signs

Space-occupying lesion and mass effect

Midline shift

!Uncal herniation

!Tonsillar herniation

Acute Blood on CT

Edema on CT

Loss of grey-white matter differentiation

Hydrocephalus Image