Table 1:

Two-Pool model estimates for exchange rate (r_b), transverse relaxation rate (R₂), and $R_{1\rho }^{\infty }$. R_1ρ, R₁, and R₂ relaxation rates measured from the imaging experiments at 34°C are shown as well.

pH	Phantom R1ρ (s−1)* 800 Hz SL	Phantom R1 (s−1)*	Model Fit ${\mathit{R}}_{\mathbf{1}\mathit{\rho }}^{\mathit{\infty }}$ (s−1)*	Phantom R2 (s−1)*	Model Fit R2(s−1)*	Exchange Rate rb (s−1)*
6.01	1.8±0.03	0.45±0.01	1.4±0.17	3.5±0.03	3.1±0.12	225±67
6.51	2.1 ±0.09	0.46±0.01	1.6±0.24	4.1±0.06	3.7±0.17	220±76
7.02	2.6±0.06	0.5±0.01	2.1±0.31	4.1±0.03	3.8±0.16	281±62
7.25	2.7±0.06	0.51±0.01	2.2±0.34	3.9±0.14	3.7±0.14	331±148
7.51	2.7±0.09	0.51±0.02	2.3±0.23	3.9±0.11	3.8±0.13	261±105
7.79	2.6±0.05	0.49±0.01	2.2±0.37	3.9±0.005	3.6±0.16	310±83
8	2.9±0.16	0.52±0.02	2.5±0.65	4.2±0.20	3.9±0.33	276±304

^*Mean ± Standard Deviation