. Author manuscript; available in PMC: 2012 Feb 1.

Published in final edited form as: Acad Radiol. 2010 Dec 3;18(2):220–229. doi: 10.1016/j.acra.2010.09.017

Table III.

Detection performance of the classifier by biopsy outcome, type of abnormality, and density BIRADS at three specificity levels.

	Specificity	95%	90%	80%
Biopsy result	All 56 biopsy cases	22 (39%)	30 (54%)	41 (73%)
	9 Cancer cases	2 (22%)	6 (67%)	7 (78%)
	9 High risk cases	6 (67%)	6 (67%)	7 (78%)
	38 Benign biopsy cases	14 (37%)	18 (47%)	27 (71%)

Abnormality	37 cases depicting only masses	14 (38%)	17 (46%)	25 (68%)
	8 cases depicting calcifications only	4 (50%)	6 (75%)	6 (75%)
	11 cases depicting both abnormalities	4 (36%)	7 (64%)	10 (91%)

Breast density	12 BIRADS 2 cases	3 (25%)	5 (42%)	9 (75%)
	36 BIRADS 3 cases	16 (44%)	20 (56%)	27 (75%)
	8 BIRADS 4 cases	3 (38%)	5 (63%)	5 (63%)