Also found in: Wikipedia.


Breast Imaging-Reporting and Data System. A quality assurance system and lexicon originally designed for reporting mammography results from patients with breast cancer, and published as an atlas by the American College of Radiology. The BI-RADS Atlas is a peer-reporting (i.e., not for lay or patient use) tool which now includes three imaging modalities: mammography, ultrasound and MRI.

There is considerable variability in the correct interpretation of mammograms among radiologists—there is a moderate agreement among radiologists in reporting an abnormal finding when cancer is present (kappa = 0.52) and substantial agreement when cancer is not present (kappa = 0.62); BI-RADS was designed by the American College of Radiology (ACR) to provide the verbal uniformity to be used in descriptions of mammogram results, required for data submission to the ACR National Mammography Database (NMD), and to ensure concise reporting of breast-imaging findings among various practitioners and specialties.

On dictation, there may be reference to an ACR, a BI-RADS or an ACRBI-RADS classification or category related to findings. These are:
1 or N: normal;
2 or B: benign;
3 or P: probably benign;
4 or S: suspicious ;
5 or M: malignant.

BI-RADS Assessment Categories
0: Incomplete;
1: Negative;
2: Benign finding(s);
3: Probably benign;
4: Suspicious abnormality;
5: Highly suggestive of malignancy;
6: Known biopsy—proven malignancy.

Breast Composition Categories
1: Almost entirely fat;
2: Scattered fibroglandular densities;
3: Heterogeneously dense;
4: Extremely dense.
References in periodicals archive ?
Provista's prospective, blinded, randomized, study enrolled over 500 patients from 10 breast cancer centers across the United States and included women ages 25-75 who had a BI-RADS 3 (probably benign) or BI-RADS 4 (suspicious) finding on imaging.
One study has suggested how proteomic biomarkers might be integrated with conventional modalities, showing that a five-protein signature in serum (dtectDx Breast, Provista) performed well among women younger than age 50 years for differentiating benign breast lesions from invasive breast cancer in those with a BI-RADS 3 or 4 mammogram (J Clin Oncol.
The 5th edition of the ACR BI-RADS Atlas 2013 (15) provides a systematic outline for MRI evaluation of breast implants with description of implant material and lumen type (saline, silicone, other materials, single-lumen versus multilumen), implant location (retroglandular versus retropectoral), abnormal implant contour (focal bulge), intracapsular silicone findings (radial folds, subcapsular lines, keyhole signs, linguini sign), extracapsular silicone (breast, lymph nodes), water droplets, and peri-implant fluid.
For mammograms misclassified by the claims-based approaches, we investigated the proportion with a subsequent cancer diagnosis within 1 year and the BI-RADS assessment assigned by the radiologist to better understand possible causes of misclassification.
Providers can now download this valuable quality assurance tool onto their mobile device or desktop computer, making BI-RADS conveniently portable and easy to search.
14) A BI-RADS code 0 indicates that the screening radiologist needs more information to determine whether recall is necessary, for instance, in the case of possible superimposed images.
VolparaDensity automatically generates an objective measurement of volumetric breast density and a FDA-cleared BI-RADS breast density category, while VolparaDose helps keep track of patient-specific dose exposure.
The VuCOMP densitycategory, analogous to the BI-RADS breast density composition category, is now correlated to not only theamount, but also the distribution the actual dispersion of fibroglandular tissue.
The American College of Radiology BI-RADS lexicon describes mammographic findings using a standard nomenclature, and benign calcifications include those that are located in the skin (6).
The BI-RADS classification system applies to medical images of the breast acquired by X-rays, ultrasound and MRI.
The speakers came from the USA, Canada and Australia, and all spoke a language only used by a minority of South African radiologists: BI-RADS (breast imaging reporting and data system).
The current assessment available in most clinical settings is BI-RADS, Breast Imaging-Reporting and Data System, which is relatively unsophisticated when it comes to measuring breast density and was not intended for this purpose, Dr.