No.	Recommendations/Statements	EG	LoE	Sources
3.13.	a) Increased mammographic density is an independent moderate risk factor for breast cancer. Mammographic density and mammography sensitivity are negatively correlated.	B	3a	1 ,  15 ,  16 ,  17
	b) Evidence on the use of additional imaging procedures is limited. With the exception of high-risk situations, ultrasound currently appears to be a suitable method to supplement mammography. Sonography can increase density-related sensitivity; however, there is no evidence that it reduces mortality. Sonography used for screening purposes is associated with a higher rate of biopsies than the (German) national mammography screening program.	B	3a	1 ,  8 ,  9 ,  18 ,  19 ,  20 ,  21
	c) Tomosynthesis can increase sensitivity. Trialing tomosynthesis in a quality-assured program should be considered.	B/0	1b	22 ,  23 ,  24