. Author manuscript; available in PMC: 2012 Oct 17.

Published in final edited form as: Cephalalgia. 2011 Aug 4;31(12):1254–1265. doi: 10.1177/0333102411408360

Table 1.

Percent change of regional sodium concentration after NTG

Region	Controls (n=6, measured twice) RAVI × 10⁷ (SD)	NTG (n=6, measured twice) RAVI × 10⁷ (SD)	% Δ	P value
L vitreous humor	16.0 (1.1)	17.2 (0.7)	7.5 %	0.015
R vitreous humor	11.3 (1.1)	12.7 (1)	12 %	0.008
Frontal CSF	7.9 (0.3)	8.8 (0.9)	11 %	0.002
L front brain	4.8 (0.2)	5.6 (0.4)	17 %	0.002
R front brain	4.4 (0.4)	5.1 (0.3)	16 %	0.002
Total brain	5.8 (0.2)	6.6 (0.4)	14 %	<0.0001
L posterior CSF	10.0 (0.6)	11 (0.7)	10 %	0.021
R posterior CSF	8.9 (0.6)	9.9 (0.9)	11 %	0.011
R & L jaw muscle	2.9 (0.6)	2.8 (0.7)	−3.6 %	0.240

RAVI=regional average voxel intensity; SD=standard deviation; P values for specific regional comparisons using Dunn’s Multiple Comparison Test.