The Bern SIH Score indicates the probability of spontaneous intracranial hypotension (SIH) on the basis of 6 criteria on cranial MRI imaging, with a score ranging from 0 to 9 points[^1].
Score
Criterion | Points |
Enlargement of the venous Dural venous sinus. | 2 |
Pachymeningeal contrast enhancement | 2 |
Subdural fluid collection | 1 |
Narrowing of the suprasellar cistern (≤ 4mm) | 2 |
Narrowing of the prepontine cistern (≤ 5 mm) | 1 |
Mamillopontine distance ≤ 6.5 mm | 1 |
Interpretation
The points calculated from the score can be interpreted as follows[^1].
Points | Probability of a spinal CSF leak |
≤ 2 | Low |
3-4 | Intermediate |
≥ 5 | High |
Imaging
