Table 2. Segmentation performance at external test.

Model	2D
	Dice coefficient	Pixel-wise recall	Pixel-wise precision
T1 + CE	0.699 (0.695–0.702)	0.653 (0.651–0.655)	0.752 (0.750–0.754)
T1	0.570 (0.568–0.572)	0.465 (0.463–0.467)	0.736 (0.734–0.738)
CE	0.409 (0.404–0.413)	0.410 (0.408–0.412)	0.408 (0.406–0.410)

Data in parentheses are 95% confidence interval.

T1 = non-contrast T1-weighted image, CE = contrast-enhanced fat-suppressed T1-weighted image