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Table 1 Sinus cross section area and circumference

From: 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?

  Age Sinus area Circumference Circularity
Years mm2 mm
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
  1. Con control, HY hydrocephalus, IIH idiopathic intracranial hypertension, mm 2 mm squared, mm millimeters, MS multiple sclerosis, SD standard deviation, SIH spontaneous intracranial hypotension
  2. * t test p value <0.05