BI-RADS

BI-RADS

BI-RADS is an acronym for Breast Imaging-Reporting and Data System, a quality assurance tool originally designed for use with mammography. The system is a collborative effort of many health groups but is published and trademarked by the American College of Radiology (ACR).

The system is designed to standardize reporting. The document focuses on patient reports used by medical professionals, not "lay reports" that are provided to patients.

Published Documents

The BI-RADS is published by ACR in the form of the BI-RADS Atlas. As of 2007 the Atlas is divided into 3 publications:

* Mammography, Fourth Edition
* Ultrasound, First Edition
* MRI, First Edition

Assessment Categories

While BI-RADS is a quality control system, in day-to-day usage the term "BI-RADS" refers to the mammography assessment categories. These are standized numerical codes typically assigned by a radiologist after interpreting a mammogram. This allows for concise and unambiguous understanding of patient records between mulitiple doctors and medical facilities.

The assessment categories were developed for mammography and later adapted for the MRI and Ultrasound Atlases. The summary of each category, given below, is identical for all 3 modalities.

Category 6 was added in the 4th edition of the Mammography Atlas.

BI-RADS Assessment Categories are [American College of Radiology (ACR) Breast Imaging Reporting and Data System Atlas (BI-RADS Atlas). Reston, Va: © American College of Radiology; 2003] :

*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

External links

* [http://www.acr.org The American College of Radiology]
* [http://www.acr.org/SecondaryMainMenuCategories/quality_safety/BIRADSAtlas.aspx BI-RADS Atlas]
* [http://www.birads.at/ Short tutorial, with actual mammogram pictures]

References


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