Table 1. qMRI tissue parameters from manually placed regions of interest in 10 healthy subjects, on both 1.5 T and 3.0 T systems.

n indicates the number of ROI’s used per region in each subject.

		1.5 T			3.0 T
Anatomy	n	R1 (s-1)	R2 (s-1)	PD (%)	R1 (s-1)	R2 (s-1)	PD (%)
Frontal white matter	2	1.67 ± 0.09	13.55 ± 0.63	64.86 ± 2.04	1.39 ± 0.06	14.49 ± 0.57	66.31 ± 1.46
Peritrigonal white matter	2	1.64 ± 0.12	12.66 ± 0.90	62.03 ± 3.07	1.41 ± 0.08	13.57 ± 0.89	63.14 ± 2.90
Centrum Semiovale	2	1.51 ± 0.08	11.80 ± 0.56	68.53 ± 1.75	1.31 ± 0.04	12.77 ± 0.56	68.27 ± 1.51
Genu	1	1.78 ± 0.14	14.23 ± 0.73	59.88 ± 2.26	1.46 ± 0.07	15.29 ± 0.58	63.72 ± 1.46
Splenium	1	1.58 ± 0.12	12.46 ± 0.79	65.33 ± 2.92	1.38 ± 0.09	13.11 ± 0.83	65.61 ± 2.37
Average white matter	8	1.62 ± 0.14	12.84 ± 1.09	64.51 ± 3.77	1.38 ± 0.08	13.76 ± 1.10	65.60 ± 2.84
Frontal Cortex	2	0.81 ± 0.08	10.29 ± 0.59	88.06 ± 3.76	0.77 ± 0.08	10.69 ± 0.76	86.88 ± 2.86
CSF	2	0.24 ± 0.01	0.87 ± 0.55	103.76 ± 3.54	0.32 ± 0.09	0.79 ± 0.59	94.40 ± 6.59