Apart from giving the dimensions of an intracranial aneurysm, its size should be cathegorized according to this table.
| Description | Size |
|---|---|
| Small | ≤5mm |
| Medium | <15mm |
| Large | <25mm |
| Giant | ≥25mm |
The diameter of the neck of the aneurysm is cathegorized as well.
| Description | Size |
|---|