Table 4:

Pearson correlation coefficients among method differences in volume estimation of tissue outside the lesion regions and WML size^{^a}

Method	GM	WM	CSF
H1
ANN	0.77	−0.74	0.83
FCM	0.82	−0.80	0.71
FANTASM	0.80	−0.73	0.66
FAST	0.86	−0.93	0.97
SPM5	0.11	0.51^{^b}	−0.30^{^b}
SPM8	−0.57^{^b}	0.95	−0.77
H2
ANN	0.85	−0.92	0.93
FCM	0.71	−0.84	0.94
FANTASM	0.66	−0.82	0.87
FAST	0.33^{^b}	−0.46^{^b}	0.62^{^b}
SPM5	−0.43^{^b}	0.18^{^b}	0.65^{^b}
SPM8	0.16^{^b}	−0.37^{^b}	0.30^{^b}
H3
ANN	0.07	−0.16^{^b}	0.79
FCM	0.50	−0.77	0.89
FANTASM	0.17	−0.57^{^b}	0.87
FAST	0.45	−0.73	0.89
SPM5	−0.78^{^b}	0.72	0.14^{^b}
SPM8	−0.64^{^b}	0.72	−0.01^{^b}

↵a Correlation was computed for each method and hospital separately. All values were found to be significant (P value <.05) unless otherwise noted.
↵b Not significant.