Table 2. Six Imaging Signs With Good Discriminative Power and Interrater Agreement That Were Included in the Final Diagnostic Score and Assigned Score Points.

Characteristic	Coefficient (95% CI)	Odds Ratio (95% CI)	P Value	Score Points
Engorgement venous sinus	2.95 (1.18-4.72)	19.12 (3.26-112.30)	.001	2
Pachymeningeal enhancement	4.04 (2.50-5.59)	57.01 (12.18-266.78)	<.001	2
Subdural fluid collection	1.54 (−0.10 to 3.17)	4.65 (0.90-23.92)	.07	1
Suprasellar cisterna	3.48 (2.36-4.60)	32.32 (10.55-99.02)	<.001	2
Prepontine cisternb	1.47 (0.41-2.52)	4.34 (1.51-12.47)	.007	1
Mamillopontine distancec	1.13 (0.07-2.19)	3.08 (1.07-8.90)	.04	1

^a≤4 mm.

^b≤5 mm.

^c≤6.5 mm.