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. Author manuscript; available in PMC: 2010 Oct 12.
Published in final edited form as: J Magn Reson Imaging. 2008 Mar;27(3):489–499. doi: 10.1002/jmri.21285

Table 5.

Linewidth (± SD) of the NAA Peak for each Location

Location NAA linewidth
(ppm)		 NAA
linewidth
(Hz)
Parietal–occipital WM 0.033 ± 0.004 4.24 ± 0.49
Centrum semiovale 0.034 ± 0.010 4.33 ± 1.22
Parietal GM 0.038 ± 0.006 4.81 ± 0.76
Thalamus 0.039 ± 0.006 5.01 ± 0.80
Occipital GM 0.042 ± 0.008 5.38 ± 1.02
Frontal GM 0.061 ± 0.021 7.82 ± 2.75
Frontal WM 0.064 ± 0.024 8.25 ± 3.05
Inferior vermis 0.065 ± 0.028 8.33 ± 3.53
Pons 0.078 ± 0.036 10.04 ± 4.64

NAA = N-acetyl aspartate; WM = white matter; GM = gray matter.