Explore a variety of informative and instructional resources related to radiology quality and safety, such as the Breast Imaging Reporting and Data System Atlas (BI-RADS®), the Liver Imaging Reporting and Data System (LI-RADS), Manual on Contrast Media, and more.
BI-RADS 2013


The BI-RADS® Atlas provides standardized breast imaging findings terminology, report organization, assessment structure and a classification system for mammography, ultrasound and MRI of the breast.

Doctor Patient

Resource Collections

These top-specific pages offer a variety of informative and instructional resources designed to radiologists in providing effective, safe, quality care to patients.

Breast Imaging Resources »
CT Colonography Resources »
Lung Cancer Screening Resources »

Head Injury Institute

Head Injury Imaging Reporting and Data System (HI-RADS)

The Head Injury Imaging Reporting and Data System (HI-RADS) is being developed to standardize the reporting and data collection of imaging in patients with Traumatic Brain Injury (TBI).


Liver Imaging Reporting and Data System (LI-RADS)

The general schema of LI-RADS is to attempt to classify observations as either definite HCCs (LR 5) or definitely benign (LR 1).

Doctor talking with patient

Lung CT Screening Reporting and Data System (Lung-RADS™)

Lung-RADS is a quality assurance tool designed to standardize lung cancer screening CT reporting and management recommendations, reduce confusion in lung cancer screening CT interpretations, and facilitate outcome monitoring.


Prostate Imaging Reporting and Data System (PI-RADS)

To improve early diagnosis and treatment of prostate cancer, ACR, AdMeTech Foundation and ESUR formed a joint effort to develop standards for the Prostate Imaging Reporting and Data System (PI-RADS).

Dr viewing brain scans

MRI Terminology Glossary

This glossary of conventional NMR-related terms, along with the accompanying table of basic quantities in electricity and magnetism, are offered by the American College of Radiology for the use of physicians, medical physicists, and manufacturers.

Manual on Contrast Media: Version 10.1

Manual on Contrast Media v10.1

This newly updated Version 10.1 manual is the premier guide for radiologists, to enhance the safe and effective use of contrast media in daily practice.

Patient in CT Machine

MR Safety

The ACR created a multidisciplinary blue ribbon panel to address critical issues in MR safety. Initially published in the American Journal of Roentgenology in June 2002, updated in May 2004, March 2007, and then markedly expanded and updated in 2012 (for 2013 publication in the JMRI), the ACR Guidance Document for Safe MR Practices: 2013 addresses numerous MR safety related topics.

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Choosing Wisely Resources

As part of Choosing Wisely® the ACR developed a list of five things to reduce unnecessary imaging exams ordered by physicians and improve quality of care. The list names imaging exams whose necessity should be discussed before being ordered. The list also equips providers with steps to help ensure safe, appropriate use of scans. 

Imaging in Biocontainment Situations

In response to recent diagnoses of Ebola Virus Disease (EVD) in patients and health care workers in the United States, the ACR has provided guidance to help radiology professionals provide imaging care to patients diagnosed with or suspected of having Ebola. View guidance document »