Table 1.

Comparison of FOM with 2DDM images and with 3DsDM images

Observers		FOM
2DDM	3DsDM
Residents	A	0.847	0.940
B	0.831	0.926
C	0.862	0.958
D	0.759	0.829
Average	0.825	0.913 (p < 0.001)
Attending radiologists	E	0.904	0.963
F	0.872	0.950
G	0.881	0.963
H	0.919	0.967
Average	0.894	0.959 (p < 0.001)
Average total	0.859	0.936 (p < 0.001)

FOM, figure-of-merit; 2DDM, two-dimensional digital mammography; 3DsDm, three-dimensional stereoscopic digital mammography; MLO, mediolateral oblique