BI-RADS
Medical abbreviation · Medical Imaging
| Stands for | Breast Imaging Reporting and Data System |
|---|---|
| Categories | Medical |
BI-RADS stands for Breast Imaging Reporting and Data System, a medical imaging abbreviation.
American College of Radiology system that standardizes mammogram, breast ultrasound and breast MRI reports with final assessment categories from 0 to 6: 0 needs more imaging, 1 negative, 2 benign, 3 probably benign (short-interval follow-up), 4 suspicious (biopsy), 5 highly suggestive of malignancy and 6 known cancer.
Example: Screening mammogram BI-RADS 0: callback for spot compression views.
Usage notes
First published in 1993. Category 3 findings carry a malignancy risk of 2 percent or less, while category 5 carries 95 percent or more, and category 4 is split into 4A, 4B and 4C. The lexicon also grades breast density from A (almost entirely fatty) to D (extremely dense). A US federal rule effective in September 2024 requires mammography reports to tell patients whether their breasts are dense.
Related abbreviations
More medical imaging abbreviations
- ADC – Apparent diffusion coefficient
- ALARA – As low as reasonably achievable
- AP – Anteroposterior
- AXR – Abdominal X-ray
- BMD – Bone mineral density
- CBCT – Cone-beam computed tomography
- CECT – Contrast-enhanced computed tomography
- CIN – Contrast-induced nephropathy
- CT – Computed tomography
- CTA – Computed tomography angiography
- CTH – Computed tomography of the head
- CTP – Computed tomography perfusion
See all 58 medical imaging abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.