Table 6.

Intracellular ²³Na relaxation times from the literature. Abbreviations for T₂: ${\mathrm{T}}_{2\mathrm{l}}^{⁎}$ = long ${\mathrm{T}}_2^{⁎}$, ${\mathrm{T}}_{2s}^{⁎}$ = short ${\mathrm{T}}_2^{⁎}$.

Reference	T1 (ms)	${\mathrm{T}}_{2l}^{⁎}$ (ms)	${\mathrm{T}}_{2s}^{⁎}$ (ms)
Shinar et al. 1991 (human erythrocytes)41	21.1 ± 0.1	14.8 ± 0.3	5.1 ± 0.4
Bansal et al. 1993 (rat liver)42	21.1 ± 0.6	13.0 ± 0.9	1.3 ± 0.1
Foy et al. 1990 (frog heart)43	22.4 ± 3.0	16.4 ± 4.2	2.0 ± 1.3
Foy et al. 1990 (rat heart)43	23.0 ± 2.5	19.0 ± 1.1	2.6 ± 0.8
Winter et al. 2001 (rat brain tumor)15	24.0 ± 4.0	13.9 ± 0.9	2.0 ± 0.8
Pettegrew et al. 1984 (human erythrocytes)44	30.0 ± 3.0
Average	23.6 ± 1.4	15.4 ± 1.1	2.6 ± 0.7