Estimation of effective dose and organ cancer risk from paediatric computed tomography thorax – Abdomen - Pelvis examinations

Muhammad, N.A. and Karim, Muhammad Khalis Abdul and Hassan, Hasyma Abu and Kamarudin, Mazliana Ahmad and Wong, Jeannie Hsiu Ding and Ibahim, Mohammad Johari (2019) Estimation of effective dose and organ cancer risk from paediatric computed tomography thorax – Abdomen - Pelvis examinations. Radiation Physics and Chemistry, 165. p. 108438. ISSN 0969-806X

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Official URL: https://doi.org/10.1016/j.radphyschem.2019.108438

Abstract

Radiation dose exposure in computed tomography (CT) is acknowledged higher when compared to other imaging modalities. The side effects on children have always been a considerable concern. This retrospective study evaluated the dose exposure and organ cancer risk in paediatric patients who underwent CT thorax-abdomen-pelvis (CT TAP) between January 2016 and December 2018. The records of 34 boys and 39 girls (n = 73) were retrieved and divided into three age groups (0–4, 5–9 and 10–12) — the standard protocol for helical scanning setup at 100 kV and 210 mAs. Generally, the CT dose index volume, dose length product and effective dose increased in tandem with the children's age due to higher body mass index. From the youngest to the oldest age group, the liver had the highest cancer risk, especially for boys, which was most likely due to its anatomical location in the scan area. However, from age 5 and above, steep increments were observed in the risk for ovaries, whereas testicles had none. Thus, it is recommended to take precautions when subjecting children to CT TAP, especially prepubescent girls, whose ovaries exposed to almost a thousand times cancer risk per 100,000 procedure. © 2019 Elsevier Ltd

Item Type: Article
Uncontrolled Keywords: CT TAP; Paediatric; Effective dose; Cancer risk
Subjects: Q Science > QC Physics
R Medicine
Divisions: Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 04 Mar 2020 00:53
Last Modified: 04 Mar 2020 00:53
URI: http://eprints.um.edu.my/id/eprint/23944

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