Dose Index Registry

The DIR participants can benchmark dose indices performance data against regional and national values using quarterly PDF and interactive reports. The interactive reports’ extensive filters can pinpoint outlier exams and identify performance patterns for further investigation to ensure high-quality exam performance and patient care.

DIR-CT dose indices reports have been available since 2011 and reports are now available for DIR Fluoroscopy for interventional procedures. Work is underway on fluoroscopy for diagnostic procedures, digital radiography and nuclear medicine dose indices reports. The DIR automatically de-identifies exam and procedure data sent directly to the registry with modality-specific dose information.

Announcement: Join us Jan. 31 and Feb. 6 for a two-part webinar series demonstrating the new and enhanced DIR CT reports and providing specific examples about how to use the reports for dose monitoring and optimization. Register now.

Harnessing the Value of DIR Participation

Hear from DIR Committee chair, A. Kyle Jones, PhD about how participating in the DIR can help your practice ensure high-quality radiologic care for your patients and about his personal experience as a clinician engaged in the registry. 

Screenshot of Message from DIR Chair Video. Click to play.


How to Participate

Visit the NRDR Knowledge Base article DIR Startup Guide for a  step-by-step approach to DIR participation—from assembling your team to reviewing your reports.  

Already a NRDR participant? Add the DIR to your facility registration. Only one registration is required to participate in any of the DIR modules.

Visit the the DIR Training Webinar Series page to view free webinars and other resources about the registry’s current opportunities and benefits, how to get the most value out of participation, and strategies for using feedback reports to improve your facility's processes for better patient care.

Core Documents

Related Resources

Dose Index Registry Acknowledgements

The "Automated size-specific CT dose monitoring program: Assessing variability in CT dose" is courtesy of Duke University Clinical Imaging Physics Group. The details of the approach can be found in Christianson O, Li X, Frush DP, Samei E. Automated patient-specific CT dose monitoring system: assessing variability in CT dose. Medical Physics 39(11): 7131-7139. 2012.

The processing of non-RDSR dose screens for the Dose Index Registry is courtesy of PixelMed Publishing, LLC. The open source code of the PixelMed dose-related tools can be found at

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