Table 1:

Entrance skin dose and mean glandular dose for tungsten target and rhodium and silver filter combination materials and various kV settings for the Hologic digital mammography imaging system.

Target/Filter – kV	W/Rh			W/Ag
	mAs	ESD (mGy)	MGD (mGy)	mAs	ESD (mGy)	MGD (mGy)
28	118	5.01	1.2	69.6	3.5	0.72
30	89.8	4.6	1.2	52.7	3.2	0.65
32	67.7	4.02	1.1	40.8	2.9	0.61
34	49.3	3.3	0.94	32.2	2.6	0.56

ESD: Entrance skin dose, MGD: Mean glandular dose, W: Tungsten target, Rh: Rhodium, Ag: Silver