Breast Imaging Reporting and DataSystem (BI-RADS) of magnetics resonance imaging: Breast mass

The American College of Radiology (ACR) Breast Imaging Reporting and DataSystem (BI-RADS®) is an international consensus document developed by ACR. It covers three imaging modalities including mammography (MG), ultrasound (US), and magnetics resonance imaging (MRI), with an attempt to promote the standardized application of breast imaging in clinical diagnosis and treatment. In 1998, based on the practices and experiences of BI-RADS MG, ACR established a Lesion Diagnosis Working Group, trying to reach consensus on morphology, dynamic enhancement, and parametric mapping and to conduct feasibility evaluation.