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A First Look at the Clinical Data from the American College of Radiology Fluoroscopy Dose Index Registry (DIR-Fluoro)

24 January 2023

Recording →

Moderator: Jenia Vassileva (IAEA)

Presenter: Aaron Kyle Jones (United States of America)

About the webinar

This webinar will focus on the outcomes of the pilot phase of the American College of Radiology (ACR) Fluoroscopy Dose Index Registry (DIR-Fluoro). This new module of the ACR Dose Index Registry was established to collect dose index data from fluoroscopically guided interventional (FGI) radiology procedures, which are increasingly used as a less invasive and safer alternative to conventional surgery. The DIR allows participating sites to transfer dose index data electronically to a central data repository, where they are analysed, and summary reports are produced. This enables participants to benchmark their facility dose data against regional and national values thus facilitating procedure optimization and improved patient care.

The DIR-Fluoro pilot phase collected data from March 2018 through December 2019, with 50 fluoroscopy systems from 10 sites submitting data.

Primary radiation dose indices provided by the fluoroscopy systems, including fluoroscopy time, cumulative air kerma, and kerma area product, were collected for FGI radiology procedures. Primary dose index data were used to compute several derived indices on a per-procedure basis, including procedure-averaged reference air kerma rate and procedure-averaged X-ray field size at the reference point.

The names of the FGI procedures used in different clinical facilities were mapped to the ACR Common procedure lexicon. Dose indices were collected for 70,377 FGI during the pilot phase, with 50,501 ultimately eligible for analysis. Summary statistics including distribution parameters are available for 100 different ACR Common IDs during the pilot phase. DIR-Fluoro is now open for all sites interested to participate. The information can be found here.

Learning objectives

  1. Review the clinical data from the pilot phase of DIR-Fluoro
  2. Compare data distributions in the DIR-Fluoro pilot to other studies
  3. Discuss the future of DIR-Fluoro

Dr. Jones is a Professor at the University of Texas MD Anderson Cancer Center. He is a diagnostic medical physicist with a clinical focus on interventional and intraoperative imaging. He has authored over 70 peer-reviewed publications and in 2013 he received the Farrington Daniels Award for best paper on Radiation Dosimetry in Medical Physics. Dr. Jones was elected a Fellow of the American Association of Physicists in Medicine (AAPM) in 2019. Dr. Jones is the chair of the American College of Radiology Dose Index Registry Committee and he is the physics editor for the Journal of Vascular and Interventional Radiology.

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