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The purpose of our study was to evaluate the results after using the BI-RADS categories in clinical mammography, especially in the BI-RADS 0 and BI-RADS 3 categories.During 1 year clinical mammograms were performed in 1,777 patients. The assessment reported by radiologists was based on the American College of Radiology using BI-RADS categories. In BI-RADS 0 and BI-RADS 3 categories additional examinations, histopathological results, und follow-up results were reported.Of 1,777 mammograms, 135 (4.1%) were classified into the BI-RADS 0 category. In 60 of 67 (90%) findings categorized as BI-RADS 0, MR mammography was performed and the results of the mammograms were ultimately classified into the BI-RADS 2 category. In 18 of 135 (13.3%) patients with BI-RADS 0 no further examinations were done. In 113 of 1,777 (3.4%) mammograms were classified into the BI-RADS 3 category. In 11 of 113 (9.7%) patients with BI-RADS 3 histopathology was done. A follow-up mammogram after 6 months was done only in 24 of 102 (23%) patients. In 21 of 102 (18.5%) patients with BI-RADS 3 follow-up mammograms were not performed.Not all patients with mammographic lesions in the BI-RADS 0 category avail themselves of further diagnostic work-up. Therefore in BI-RADS 0 category lesions, additional work-up should be performed directly after mammography during the same consultation. In some cases of BI-RADS 0 category, MR mammography is able to resolve the problem. Therefore the indication for MR mammography should be more commonly used. |
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