Table 1.

Mean ± SEM Sodium $T_2^{\ast }$ Relaxation Times (Milliseconds) at 7 T in the Various Gray Matter (GM) and White Matter (WM) Brain Regions^a

		$T_2^{\ast }$ (ms)
		Right	Left	Average
GM	Frontal cortex	27 ± 3	28 ± 4	27 ± 2
	Occipital cortex	29 ± 1	29 ± 1	29 ± 1
	Putamen	21± 2	24 ± 2	23 ± 2
	Thalamus	32 ± 3	32 ± 3	32 ± 2
	Average	28 ± 2
WM	Frontal WM	32 ± 1	31 ± 3	31 ± 1
	Occipital WM	28 ± 1	29 ± 1	28 ± 1
	Periventricular WM	37 ± 2	32 ± 2	34 ± 1
	Cerebellum	25 ± 1	24 ± 1	24 ± 1
	Splenium of CC	28 ± 2
	Average	29 ± 2
CSF		53 ± 5	56 ± 7	54 ± 4

^aCC: corpus callosum.