. Author manuscript; available in PMC: 2007 Apr 11.

Published in final edited form as: Magn Reson Med. 2001 May;45(5):899–907. doi: 10.1002/mrm.1119

Table 1.

Confidence Intervals at the 95% Level for Estimations of the Concentrations of NAA, Cr, and Cho, Obtained From 500 Resampled Regressions by Bootstrapping^*

Metabolite tissue type	Brain lobes
Metabolite tissue type	Frontal right	Frontal left	Parietal right	Parietal left
NAA
Cortical gray	10.7 ± 3.3	10.8 ± 3.3	12.6 ± 4.1	14.8 ± 4.0
White	6.6 ± 2.0	7.0 ± 2.7	8.7 ± 3.4	8.9 ± 3.0
Cr
Cortical gray	15.4 ± 3.7	14.7 ± 4.2	20.1 ± 4.5	20.1 ± 4.3
White	8.2 ± 3.0	8.6 ± 2.7	11.2 ± 3.5	11.7 ± 3.7
Cho
Cortical gray	19.7 ± 5.5	19.5 ± 4.0	31.7 ± 6.0	30.1 ± 6.1
White	11.2 ± 3.6	11.7 ± 3.1	16.8 ± 5.8	19.2 ± 6.6

In percent of the metabolite mean values from all subjects.