Clinical Decision Support Registry (CDSR)

The Clinical Decision Support Registry (CDSR) was launched in 2018 under the CMS Transforming Clinical Practice Initiative as an automated mean to participate in the ACR R-SCAN project. This served to test the feasibility of using clinical decision support data to help facility personnel identify areas of potential imaging overuse and guide collaborations to improve imaging appropriateness especially for some of the most frequently ordered exams.

Following an approximate 18-month test period, and based on feedback from testing facilities, the ACR moved to establish the Clinical Decision Support Registry as a more robust and comprehensive clinical quality registry integrated fully into the NRDR platform. Currently in pilot phase, the continued aim of the CDSR is to enable efficient review of image ordering data for the purpose of quality improvement and improved patient care.

How to Participate

The ACR is recruiting CDSR pilot facilities to test data submission to the CDSR. Please contact us if you would like to participate in the pilot.

NRDR Portal Login

Need assistance?                                    Visit NRDR Support  to view the Knowledge Base user guide or place a help ticket

Have an urgent issue?                            Call us: 1-800-227-5463, ext. 3535

Core Documents

Clinical Decision Support


Learn about the requirement that referring providers consult appropriate use criteria prior to ordering advanced diagnostic imaging services for Medicare patients.

Access Now


The Radiology Support, Communication and Alignment Network (R-SCAN) delivers immediate access to web-based tools and CDS technology that help you optimize imaging care, reduce unnecessary exams and lower the cost of care

Find Out How