Comparison of the sagittal sinus cross-sectional area between patients with multiple sclerosis, hydrocephalus, intracranial hypertension and spontaneous intracranial hypotension: a surrogate marker of venous transmural pressure?

Table 1 Sinus cross section area and circumference

	Age	Sinus area	Circumference	Circularity
	Years	mm²	mm	Circularity
Control n = 20
Mean	44	42.1	27.5	0.70
SD	10	10.0	3.8	0.11
IIH n = 20
Mean	41	42.4	26.4	0.76
SD	11	11.9	3.9	0.11
p value Con vs IIH	0.33	0.94	0.34	0.07
Hydrocephalus n = 21
Mean	45	31.4	23.0	0.73
SD	10	8.4	3.2	0.09
p value Con vs HY	0.82	0.0008*	0.0002*	0.29
SI Hypotension n = 10
Mean	46	51.3	28.9	0.76
SD	11	12.7	2.8	0.07
p value Con vs SIH	0.63	0.037*	0.33	0.11
MS n = 20
Mean	45	49.0	28.8	0.75
SD	12	6.5	2.8	0.12
p value Con vs MS	0.99	0.01*	0.23	0.14

Con control, HY hydrocephalus, IIH idiopathic intracranial hypertension, mm ² mm squared, mm millimeters, MS multiple sclerosis, SD standard deviation, SIH spontaneous intracranial hypotension
* t test p value <0.05

ISSN: 2045-8118