Paediatric effective radiation doses during brain computed tomography angiography procedure

Salah H 1 , Rabbaa M 2 , Abuljoud M 2 , Babikir E 3 , Alkhorayef M 4 , Tamam N 5 Show all authors , Tahir D 6 , Sulieman A 7 , Bradley DA 8

Affiliations 

  • 1 INAYA Medical Collage, Nuclear Medicine Department, Riyadh, Saudi Arabia; College of Medical Radiologic Science, Sudan University of Science and Technology, Khartoum, Sudan. Electronic address: [email protected]
  • 2 Radiology Department, Riyadh Care Hospital, Riyadh, Saudi Arabia
  • 3 Radiologic Technology Program, College of Health and Sport Sciences, University of Bahrain, Sakhir Campus, Zallaq, P.O. Box 32038, Bahrain
  • 4 Department of Radiological Sciences, College of Applied Medical Sciences, King Saud University, P.O Box 10219, Riyadh, 11433, Saudi Arabia
  • 5 Department of Physics, College of Sciences, Princess Nourah bint Abdulrahman University, P.O Box 84428, Riyadh, 11671, Saudi Arabia
  • 6 Department of Physics, Hasanuddin University, Makassar, 90245, Indonesia
  • 7 Prince Sattam bin Abdulaziz University, College of Applied Medical Sciences, Radiology and Medical Imaging Department, P.O. Box 422, Alkharj, 11942, Saudi Arabia
  • 8 Centre for Nuclear and Radiation Physics, Department of Physics, University of Surrey, Guildford, United Kingdom; Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500, Bandar Sunway, Selangor, Malaysia
Appl Radiat Isot, 2023 Feb;192:110610.
PMID: 36525913 DOI: 10.1016/j.apradiso.2022.110610

Abstract

In comparison to adults and paediatric are more sensitive to ionizing radiation exposure. Computed tomography (CT) is now the dominant source of medical radiologic tests for patients, accounting for more than 70% of total doses to the general public. Paediatric CT brain scans (with and without contrast) are routinely performed for a variety of clinical reasons. As a result, this parameter must be calculated in order to determine relative radiation risk. The goal of this study is to assess the radiation risk to children during CT brain diagnostic procedures. Three hundred fifty three child patients' radiation risk doses were assessed over the course of a year. The mean and ranged of the children's radiation doses were 40.6 ± 8.8 (27.8-45.8) CTDIvol (mGy) and 850 ± 230 (568.1-1126.4) DLP (mGy.cm) for the brain with contrast medium. For CT brain without contrast, the patients' doses were 40.9 ± 9.4 (14.27-64.07) CTDIvol (mGy), and 866.1 ± 289.3 (203.6-2484.9) DLP (mGy.cm). The characteristics related to the radiation dose were retrieved from the scan protocol generated by the CT system by the participating physicians after each procedure. Furthermore, optimizing the CT acquisition parameter is critical for increasing the benefit while lowering the procedure's radiogenic risk. The patients' radiation dose is comparable with the most previously published studies and international diagnostic reference levels (DRLs). Radiation dose optimization is recommended due to high sensitivity of the paediatric patients to ionizing radiation.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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