Table 2. H-1 Metabolite Percentages and Ratios from Spectra of Anterior, Middle, and Posterior Regions in 21 Control Brains in Elderly Patients with Grade 0, 1, or 2 WMSHs.

Region	Total H-1 Signal (Arbitrary Units)	%NAA	%Cho	%Cr	NAA/Cho	NAA/Cr	Cho/Cr
Anterior	0.50 ± 0.04	55 ± 1*	29 ± 1†	16 ± 1*	1.93 ± 0.09†	3.39 ± 0.12‡	1.82 ± 0.09†
Middle	0.53 ± 0.05	58 ± 1	25 ± 1§	17 ± 1	2.41 ± 0.10§	3.56 ± 0.14	1.51 ± 0.06*
Posterior	0.48 ± 0.04	57 ± 1	24 ± 1	19 ± 1‖	2.38 ± 0.08	2.96 ± 0.07‖	1.27 ± 0.05#

Note.—Values are mean ± standard error of the mean.

^*P < .01 between anterior and middle by repeated-measures multivariate ANOVA.

^†P < .001 between anterior and posterior by repeated-measures multivariate ANOVA.

^‡P < .01 between anterior and posterior by repeated-measures multivariate ANOVA.

^§P < .001 between anterior and middle by repeated-measures multivariate ANOVA.

^#P < .05 between middle and posterior by repeated-measures multivariate ANOVA.

^‖P <,01 between middle and posterior by repeated-measures multivariate ANOVA.