neuroradiology
Subarachnoid hemorrhage - Fisher CT grading scale of subarachnoid bleeding
Fisher CT grading scale is used to grade severity of intracranial subarachnoid hemorrhage associated with rupture of an intracranial aneurysm. This scale predicts the risk of subsequent arterial spasms.
| Group | Description |
|---|---|
| Group I | no hemorrhage |
| Group II | subarachnoid hemorrhage <1mm thick |
| Group III | subarachnoid hemorrhage >=1mm thick |
| Group IV |
Updated 17/11/2013 20:08 by Lambert
Intracranial aneurysm - description of size and neck + calculator
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 |
|---|
Updated 17/11/2013 20:40 by Lambert
Germinal matrix hemorrhage - grading of intracranial bleeding in neonates
Grading of intracranial hemorrhage in neonates is based on ultrasound imaging. It has four grades with increasing mortality and decreasing outcome.
| Grade | Description |
|---|---|
| Grade I | hemorrhage is confined to the germinal matrix |
| Grade II | intraventricular hemorrhage without ventricular dilation |
| Grade III | intraventricular hemorrhage with ventricular dilation |
| Grade IV |
Updated 17/11/2013 11:14 by Lambert
