Table 2.

Summary of the oxygen metabolic rate (μmol/g tissue/min) results measured in brain and muscle based on region of interest (ROI) analysis

Individual animal	RMRO2 Left muscle ROI	RMRO2 Right muscle ROI	CMRO2 Left S1 ROI	CMRO2 Right S1 ROI
rat A	0.15	0.11	2.11	2.08
	0.35	0.20	2.14	2.01
rat B	0.28	0.43	2.03	1.90
rat C	0.27	0.30	2.02	2.08
	0.33	0.31	2.06	2.01
rat D	0.32	*	2.30	2.45
	0.37	*	1.85	1.96
Mean ± SD	0.30 ± 0.07	0.27 ± 0.12	2.07 ± 0.14	2.07 ± 0.18
rat E	0.45	0.34	1.82	1.77
	0.45	0.16	1.82	1.83
	0.46	0.42	1.68	1.74
rat F	0.13	*	2.14	2.08
rat G**	0.44	0.57	1.86	1.89
rat H**	0.34	0.20	1.80	1.69
Mean ± SD	0.38 ± 0.11	0.34 ± 0.14	1.85 ± 0.15	1.83 ± 0.14
Mean values of right and left ROIs:	RMRO2=0.32 ± 0.12***		CMRO2=1.97 ± 0.19***

^*No convergence of the fitting procedure.

^**This subgroup of 2 animals was acquired at a higher temporal resolution (10s per 3D CSI volume) with the lower spatial resolution protocol.

^***p < 0.01 significant tissue-type difference between muscle and brain (paired t-test).