Table 2.

BI-RADS classification and MBI interpretation criteria according to SNM [12]

BI-RADS	MBI-interpretation
1-Negative	Homogeneous uptake
2-Benign	Patchy or diffusely increased uptake, often bilateral and correlating with MG anatomy
3-Probably benign	Multiple patchy areas of uptake, mild to moderate intensity
4-Suspicious for malignancy	Small focal areas of increased uptake
4a-Low
4b-Intermediate
4c-Moderate
5-Highly suggestive of malignancy	Moderate to intense focal uptake with well-delineated contours

BI-RADS breast imaging-reporting and data system, MBI molecular breast imaging