Table 2.

Volumes of the adipose (bold) and fibroglandular (normal) regions of phantoms of various volume and different numbers of compartments.

Volume (ml) of adipose (bold) and fibroglandular (normal) regions		Phantom volume (ml)
250	450	700	950	1500
Number of compartments in adipose (bold) and fibroglandular (normal) regions	100	143.4 ± 0.9	254.6 ± 2.0	392.0 ± 3.0	528.3 ± 4.6	833.4 ± 3.3
	67	86.0 ± 0.9	164.7 ± 2.0	266.6 ± 3.0	370.8 ± 4.6	597.5 ± 3.3
	200	151.7 ± 0.8	263.7 ± 2.0	404.0 ± 2.4	546.2 ± 3.4	854.9 ± 4.8
	133	77.6 ± 0.8	155.6 ± 2.0	254.6 ± 2.4	352.9 ± 3.4	575.9 ± 4.8
	300	155.4 ± 1.1	271.0 ± 2.7	413.8 ± 2.5	557.3 ± 3.1	870.0 ± 7.9
	200	73.9 ± 1.1	148.2 ± 2.7	244.8 ± 2.5	341.8 ± 3.1	560.9 ± 7.9