Table 1:

Interrater reliability between 2 independent investigators for all imaging findings

Imaging Feature	Reliability
Evans index (ICC)	0.93
Callosal angle (ICC)	0.95
Narrow sulci (κ)	0.64
Sylvian fissure original (κ)a	0.36
Sylvian fissure ordinal (κ)b	0.62
Sylvian fissure height (ICC) (mm)	0.89
DESHc	NA
Flow void (κ)	0.33
Focal bulging (κ)	0.28
Third ventricle (ICC)	0.96
Temporal horns (ICC)	0.80
DWMH (κ)	0.67
PVH (κ)	0.72
Focally enlarged sulci (κ)	0.54
Aqueductal stenosis (κ)	0.32

Note:—NA indicates not applicable.

^aThe original method to measure the Sylvian fissure.⁷

^bOrdinal scale of 0–2.

^cCalculated from Sylvian fissure ordinal and narrow sulci.