Table 1.

Classification of 8 categories with respective classes.

Breast image categories	Classes	No. of images
BI-RADS 1	Negative	67
BI-RADS 2	Benign	220
BI-RADS 3	Probably benign	24
BI-RADS 4A	Low suspicion for malignancy	13
BI-RADS 4B	Moderate suspicion for malignancy	8
BI-RADS 4C	High suspicion for malignancy	21
BI-RADS 5	Highly suggestive of malignancy	30
BI-RADS 6	Known biopsy-proven malignancy	8
Total	411