CEUS Helps to Rerate Small Breast Tumors of BI-RADS Category 3 and Category 4

Table 3

Changed category according to the intensity of enhancement in CEUS.

BI-RADS category	Changed BI-RADS category	Pathology
		Benign; (n = 77)	Malignant; (n = 30)
3 (n = 31)	2 (n = 25)	25	0
	3 (n = 1)	1	0
	4a (n = 5)	5	0
4a (n = 49)	3 (n = 23)	23	0
	4a (n = 11)	9	2
	4b (n = 15)	8	7
4b (n = 6)	4a (n = 4)	3	1
	4b (n = 1)	1	0
	4c (n = 1)	0	1
4c (n = 21)	4b (n = 2)	2	0
	4c (n = 3)	0	3
	5 (n = 16)	0	16