sp0010">132 patients underwent standard digital mammography and tomosynthesis and the likelihood of malignancy was categorized according to (ACR) BI-RADS.
sp0015">Tomosynthesis images had significantly increased the number of cases with BI-RAD 1 or 2 (normal/benign) to 62 (42.7%) compared to 39 (26.8%) at mammogram (p < 0.005). Tomosynthesis helped also in more clarification of benign characters. Tomosynthesis images had significantly decreased the number of indeterminate/suspicious lesions (BI-RADS 3 and 4) from 90 (62%) cases to 39 (26.8%) (p < 0.005). In a total of 40 lesions (27.5%) assigned to BI-RADS 5 at tomosynthesis, the tomosynthesis showed better performance in assessment of tumor extension and higher level in detection of clusters of micro-calcifications.
sp0020">The accuracy, specificity, sensitivity and positive and negative predictive values (%) of mammography alone versus when combined with the tomosynthesis were as follows: 59.3, 62.8, 55.2, 56 and 62 versus 91.7, 92.3, 91, 91, and 92.3 respectively (<span id="bt0020">Table 4span>).
sp0025">Tomosynthesis significantly improved the detection of the breast lesions on mammography images especially in the dense breast with significantly higher accurate BI-RADS scoring (P value <0.005).
sp0030">Breast tomosynthesis is a promising technology that offers improved diagnostic and screening accuracy, fewer recalls as well as 3D lesion localization. Lesion conspicuity is improved using DBT compared with FFDM with a more confidence in making clinical decisions.