Table 3:

Reproducibility of volume estimation of WM, GM, CSF, BPV, and ICV using NeuroQuant and SyMRI, between 1.5T and 3T^{^a}

	T1-Weighted NQ 1.5T-3T				syT1WI NQ 1.5T-3T				SyMRI 1.5T-3T
	Mean	Bias	SD	r	Mean	Bias	SD	r	Mean	Bias	SD	r
WM	661	27^{^b}	65	0.83	613	58^{^b}	23	0.97	547	0	39	0.89
GM	622	−6	58	0.83	609	55^{^b}	14	0.98	669	−7	33	0.95
CSF	368	–41^{^b}	34	0.76	359	–45^{^b}	22	0.88	236	1	16	0.97
BPV	1284	21	119	0.84	1223	113^{^b}	31	0.98	1258	21^{^b}	13	1.00
ICV	1652	−20	120	0.86	1581	68^{^b}	20	0.99	1494	21^{^b}	9	1.00

↵a Expressed as mean, bias, and SD of the difference and correlation coefficient r.
↵b Significant (P < .05).