# Estimation of Effective Radiation Dose for Computed Tomography Head in Pediatric Patients at Universal College of Medical Sciences: A Cross-Sectional Study

## Authors

- Subhash Chandra Yadav ([ORCID](https://orcid.org/0000-0003-1586-2597)) — Universal College of Medical Sciences and Teaching Hospital, Bhairahawa, Rupandehi, Nepal
- Darshna Dhakal ([ORCID](https://orcid.org/0009-0002-2800-345X)) — Universal College of Medical Sciences and Teaching Hospital, Bhairahawa, Rupandehi, Nepal

## Article information

- **Journal:** The Ulutas Medical Journal (Ulutas Med J), ISSN 2149-388X
- **Issue:** Volume 9, Issue 4 (2023), pages 208–212
- **Article type:** Original Article
- **Published online:** 2023-12-15
- **DOI:** [10.5455/umj.20230714114808](https://doi.org/10.5455/umj.20230714114808)
- **Licence:** [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/)
- **Article page:** https://www.ulutasmedicaljournal.com/?mno=161134
- **PDF:** https://www.ulutasmedicaljournal.com/pdf/161134.pdf

## Abstract

Introduction: In modern medicine, CT has made tremendous advances, but the use of CT has been accompanied by concerns about patient safety since it delivers higher doses of radiation than most other diagnostic imaging procedures. Children are particularly vulnerable because their rapidly dividing cells are more sensitive to radiation, and they will have more years to undergo cancerous changes. This study aimed to estimate the effective radiation dose received by pediatric patients while having CT heads at UCMS-TH. Materials and Methods: This cross-sectional study was conducted in the Department of Radiodiagnosis & Medical Imaging, UCMS-TH, Bhairahawa, Nepal. Seventy-five pediatric patients were included in this study over five months, from November 2020 to March 2021. The radiation doses were estimated using a convenient technique and data were analyzed using SPSS version 20. Results: The average mean age of the participants was 9.85±4.45 years. There were 69.3% males and 30.7% females. The age group 11-15 years had the highest frequency of patients 54.7%, followed by the age group 6-10 years with 24% patients. The mean and standard deviation of CTDIvol, DLP, and ED of NCCT and CECT head were significantly different between males and females throughout the study. Conclusion: In pediatrics, male NCCT head scans had higher ED, whereas female CECT head scans had a maximum ED. The age range of 11-15 years had the maximum ED, followed by the age group of 6-10 years.

## Keywords

Computed Tomography; Volume CT dose index; Dose Product Length; Effective dose

## How to cite

Yadav SC, Dhakal D. Estimation of Effective Radiation Dose for Computed Tomography Head in Pediatric Patients at Universal College of Medical Sciences: A Cross-Sectional Study. Ulutas Med J. 2023;9(4):208-212. doi:10.5455/umj.20230714114808

## References

1. Gao Y, Quinn B, Mahmood U, Long D, Erdi Y, St. Germain J, Pandit-Taskar N, Xu XG, Bolch WE, Dauer LT. A comparison of pediatric and adult CT organ dose estimation methods. BMC medical imaging. 2017 Dec; 17:1-7. https://doi.org/10.1186/s12880-017-0199-3
2. Alzimami K. Assessment of radiation doses to paediatric patients in computed tomography procedures. Polish journal of radiology. 2014;79:344. https://doi.org/10.12659/pjr.890806
3. Kadavigere R, Sukumar S. Estimation of radiation dose and establishment of local diagnostic reference levels for computed tomography of head in pediatric population. Journal of X-Ray Science and Technology. 2022 Jan 1(Preprint):1-9.
4. Ogbole GI. Radiation dose in paediatric computed tomography: risks and benefits. Annals of Ibadan postgraduate medicine. 2010;8(2):118-26. https://doi.org/10.4314/aipm.v8i2.71823
5. Inoue Y, Itoh H, Shiibashi N, Sasa R, Mitsui K. Sample size and estimation of standard radiation doses for pediatric brain CT. Tomography. 2022 Oct 1;8(5):2486-97. https://doi.org/10.3390/tomography8050207
6. Khong PL, Ringertz H, Donoghue V, Frush D, Rehani M, Appelgate K, Sanchez R. ICRP publication 121: radiological protection in paediatric diagnostic and interventional radiology. Annals of the ICRP. 2013 Apr;42(2):1-63. https://doi.org/10.1016/j.icrp.2012.10.001
7. Nievelstein RAJ, Van Dam IM, Van Der Molen AJ. Multidetector CT in children: Current concepts and dose reduction strategies. Pediatr Radiol. 2010;40(8):1324–44. https://doi.org/10.1007/s00247-010-1714-7
8. Kayun Z, Karim MK, Harun HH, Shaari AH, Mahmud R, Hamid HA, Sabarudin A, Chew MT. Radiation doses and size-specific dose estimate from CT brain examinations according to head sizes in a tertiary hospital in Malaysia. Radiation Physics and Chemistry. 2021 Dec 1;189:109694. https://doi.org/10.1016/j.radphyschem.2021.109694
9. Inoue Y, Itoh H, Waga A, Sasa R, Mitsui K. Radiation dose management in pediatric brain CT according to age and weight as continuous variables. Tomography. 2022 Apr 1;8(2):985-98. https://doi.org/10.3390/tomography8020079
10. Eddy FK, Ngano SO, Jervé FA, Serge A. Radiation dose evaluation of pediatric patients in CT brain examination: multi-center study. Scientific Reports. 2021 Feb 25;11(1):1-6. https://doi.org/10.1038/s41598-021-84078-z
11. Sulieman A, Almogren KS, Tamam N. Radiation exposure estimation in pediatric patients during computed tomography imaging procedures. Radiation Physics and Chemistry. 2023 Mar 1;204:110653. https://doi.org/10.1016/j.radphyschem.2022.110653
12. Bouaoun A, Ben Omrane L, Mogaadi M, Khomsi WD, Zidi A, Hammou A. Pediatric head CT exposure doses in Tunisia: a pilot study towards the establishment of national diagnostic reference levels. Radiation Protection Dosimetry. 2018 Dec 1;182(2):241-51. https://doi.org/10.1093/rpd/ncy055
13. Saeed MK, Almalki Y. Assessment of computed tomography radiation doses for paediatric head and chest examinations using paediatric phantoms of three different ages. Radiography. 2021 May 1;27(2):332-9. https://doi.org/10.1016/j.radi.2020.09.007
