Abstract
A rising conciousness within both the medical community and in the public has been created by the current levels of radiation exposure from increased use of computed tomography. The concern has prompted the need for more data collection and analysis of hospital and imaging center exam doses. This has spurred the American College of Radiology (ACR) to develop the Dose Index Registry (DIR), which will allow participating insitutions to compare the radiation dose from their CT exams to aggregate national CT dose data based on exam type and body part. We outline the steps involved in the process of enrolling in the DIR, the technical requirements, the challenges we encountered, and our solutions to those challenges. A sample of the quaterly report released by the ACR is presented and discussed. Enrolling in the ACR dose registry is a team effort with participation from IT, a site physicist, and a site radiologist. Participation in this registry is a great starting point to initiate a QA process for monitoring CT dose if none has been established at an institution. The ACR has developed an excellent platform for gathering, analyzing, and reporting CT dose data. Even so, each insititutions will have its own unique issues in joining the project.
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Notes
An updated release is much more user friendly.
The second report, issued in September 2012, tracks SSDE for selected exam codes, CTDIvol and DLP on a per scan basis, but not per exam. This has the effect of underestimating the dose received by the patient in multi-phase exams, but making the report more coherent. Further evolution of the reporting format is expected.
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Robinson, T.J., Robinson, J.D. & Kanal, K.M. Implementation of the ACR Dose Index Registry at a Large Academic Institution: Early Experience. J Digit Imaging 26, 309–315 (2013). https://doi.org/10.1007/s10278-012-9546-7
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DOI: https://doi.org/10.1007/s10278-012-9546-7