Comparing practice performance to regional and national benchmarks is an important tool for improving the quality of patient care. ACR's NRDR – the National Radiology Data Registry – will help your facility benchmark outcomes and process-of-care measures and develop quality improvement programs.

NRDR, a warehouse of ACR registries, compares radiology facilities regionally and nationwide according to facility type. By submitting your data to NRDR, your practice will be provided with:

  • Detailed and graphic reports in a standardized format for comparing quality
  • A tool for targeting specific areas of improvement
  • An accurate reflection of practice patterns
  • The ability to document the quality of services delivered by your facilities to interested third parties
  • The ability to measure impact of changes in practice
  • The ability to implement a data-driven quality improvement program

NRDR includes all of the registries listed below, allowing you to enjoy a single front-end  portal entry. A practice or facility may choose to participate in any or all registries as appropriate for the practice.

  • National Oncology PET Registry (NOPR)
  • CT Colonography Registry (CTC)
  • General Radiology Improvement Database (GRID)
  • National Mammography Database (NMD)
  • Dose Index Registry (DIR)
  • Lung Cancer Screening Registry (LCSR) 
  • Additional Resources for ACR Members: Night Coverage Registry

Register now with NRDR. For more information about NRDR, visit, or call Victoria O'Brien at 800-227-5463 ext. 3535 or e-mail