Combining b2500 diffusion-weighted imaging with BI-RADS improves the specificity of breast MRI.

Purpose: The purpose of this study was to evaluate the diagnostic performance of visual assessment of diffusion-weighted images (DWI) obtained with a b value of 2500 s/mm in addition to a conventional magnetic resonance imaging (MRI) protocol to characterize breast lesions.

Materials And Methods: This single-institution retrospective study included participants who underwent clinically indicated breast MRI and breast biopsy from May 2017 to February 2020. The examination included a conventional MRI protocol including DWI obtained with a b value of 50 s/mm (bDWI) and a b value of 800 s/mm (bDWI) and DWI obtained with a b value of 2500 s/mm (bDWI).