Skip to main content

Advertisement

Table 2 Grading based on CT-scan as defined by the (modified) Fisher scale and associated risk for delayed cerebral ischaemia (DCI)

From: Aneurysmatic subarachnoid haemorrhage

Grade modified Fisher scale DCI risk
0 absent SAH or intraventricular haemorrhage minimal (0%)
1 focal or diffuse, thin (< 1 mm) SAH, no intraventricular haemorrhage low (24%)
2 focal or diffuse, thin (< 1 mm) SAH, present intraventricular haemorrhage moderate (33%)
3 focal or diffuse, thick (> 1 mm) SAH, no intraventricular haemorrhage moderate (33%)
4 focal or diffuse, thick (> 1 mm) SAH, present intraventricular haemorrhage high (40%)