Diagnostic reference levels (DRL) in Computed Tomography during the period 2018-2022 in a private hospital in Chile

Authors

  • Jugleys Seijas Acosta The German Hospital of Santiago image/svg+xml
  • Javiera Sanguesa M The German Hospital of Santiago image/svg+xml
  • Pablo Soffia S The German Hospital of Santiago image/svg+xml
  • Daniella Fabri G Universidad de Florida , ,

DOI:

https://doi.org/10.15392/2319-0612.2024.2445

Keywords:

diagnostic reference levels, Computed Tomography, Optimization

Abstract

The aim of this study was to compare and optimize the diagnostic reference levels (DRL) of our institution obtained over 5 years, in order to find the appropriate balance between the patient dose and the quality of the clinical image for the most frequently used CT examinations.The typical values of 6 CT scanners of an institution were evaluated, taking as a reference the DRLs established in 2018. An optimization process was initiated in order to find the best balance between dose- diagnostic quality, finding that the DRLs obtained during that year were well below those published by the ACR, so we proceeded to prioritize the quality of the image by reasonably increasing the doses to the patient. In 2022, we purchased other patient dose monitoring software and got new optimized DRLs.The results obtained from the typical  values of 2018 versus 2022 had a difference of 25% to 30%, with the DRLs of 2022 being higher as we were looking for, finding a significant improvement in the quality of the diagnostic images. The medians obtained are within what is published internationally, which is an indicator that our DRLs are within international standards.This research helped our CT Service considerably to obtain typical values with excellent quality of diagnostic images, and to standardize the protocols for all our CT scanners despite being of different brands and technology. 

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References

UBEDA DE LA C., Carlos et al. Niveles de referencia para diagnóstico: Una herramienta efectiva para la protección radiológica de pacientes. Revista chilena de radiología, v. 25, n. 1, p. 19-25, mar. 2019. Disponível em: https://doi.org/10.4067/s0717-93082019000100019.

UNITED NATIONS. Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation 2020/2021 Report: Scientific Annex d - Evaluation of Occupational Exposure to Ionizing Radiation. [S. l.]: United Nations Environment Programme, 2022. ISBN 9789211392098.

PLOUSSI, Agapi et al. Local diagnostic reference levels in pediatric CT examinations: a survey at the largest children’s hospital in Greece. The British Journal of Radiology, v. 93, n. 1116, p. 20190358, 1 dez. 2020. Disponível em: https://doi.org/10.1259/bjr.20190358.

ICRP - International Commission on Radiological Protection. The 2017 Diagnostic Reference Levels in Medical Imaging. ICRP Publication 135. Annals of the ICRP, v. 46, n. 1, 2017.

WANG, Kenneth C. et al. Use of Radiology Procedure Codes in Health Care: The Need for Standardization and Structure. RadioGraphics, v. 37, n. 4, p. 1099-1110, jul. 2017. Disponível em: https://doi.org/10.1148/rg.2017160188.

ACR - American College of Radiology. 2017 ACR Tomography Computed Quality Control.

KANAL, Kalpana M. et al. U.S. Diagnostic Reference Levels and Achievable Doses for 10 Adult CT Examinations. Radiology, v. 284, n. 1, p. 120-133, jul. 2017. Disponível em: https://doi.org/10.1148/radiol.2017161911.

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Published

2024-11-27

Issue

Vol. 12 No. 3A (Suppl.) (2024): SIPR 2023

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How to Cite

Diagnostic reference levels (DRL) in Computed Tomography during the period 2018-2022 in a private hospital in Chile. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 12, n. 3A (Suppl.), p. e2445, 2024. DOI: 10.15392/2319-0612.2024.2445. Disponível em: https://bjrs.org.br/revista/index.php/REVISTA/article/view/2445. Acesso em: 16 jul. 2025.