Objective: To compare the clinical performance of digital breast tomosynthesis (DBT) with that of fullfield digital mammography (FFDM) in a diagnostic population. Methods: The study enrolled 200 consenting women who had at least one breast lesion discovered by mammography and/or ultrasound classified as doubtful or suspicious or probably malignant. They underwent tomosynthesis in one view [mediolateral oblique (MLO)] of both breasts at a dose comparable to that of standard screen-film mammography in two views [craniocaudal (CC) and MLO]. Images were rated by six breast radiologists using the BIRADS score. Ratings were compared with the truth established according to the standard of care and a multiple-reader multiplecase (MRMC) receiver-operating characteristic (ROC) analysis was performed. Clinical performance of DBTcompared with that of FFDMwas evaluated in terms of the difference between areas under ROC curves (AUCs) for BIRADS scores. Results: Overall clinical performance with DBT and FFDM for malignant versus all other cases was not significantly different (AUCs 0.851 vs 0.836, p=0.645). The lower limit of the 95% CI or the difference between DBT and FFDM AUCs was -4.9%. Conclusion: Clinical performance of tomosynthesis in one view at the same total dose as standard screen-film mammography is not inferior to digital mammography in two views.
- Clinical performance.
- Digital breast tomosynthesis.
- Digital mammography.
- ROC analysis.
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging