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Pediatric effective dose assessment for routine computed tomography examinations in Tehran, Iran

Atefeh Tahmasebzadeh1, Asghar Maziyar2, Reza Reiazi3

  • 1Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.

Journal of Medical Signals and Sensors
|September 19, 2022
PubMed

Insights

This study assessed computed tomography (CT) effective dose (ED) in pediatric patients across five imaging centers in Tehran. Results show significant ED variations by age and procedure, highlighting the need for radiation dose optimization in pediatric CT scans.

Area of Science:

  • Radiology
  • Medical Physics
  • Pediatric Imaging

Background:

  • Computed tomography (CT) is a vital diagnostic tool in pediatric care.
  • Variations in radiation exposure can impact patient safety and long-term health outcomes.
  • Standardizing effective dose (ED) in pediatric CT is crucial for minimizing risks.

Purpose of the Study:

  • To evaluate the effective dose (ED) in pediatric CT examinations across different age groups.
  • To assess medical radiation exposure in pediatric imaging centers in Tehran, Iran.
  • To identify variations in ED based on patient age and imaging procedures.

Main Methods:

  • Data collected from 532 pediatric patients across four age groups.
  • Analysis of three prevalent CT procedures: head, chest, and abdomen-pelvis.
  • Effective dose (ED) calculated using National Cancer Institute CT (NCICT) software.

Main Results:

  • Mean ED values were 1.60 mSv (head), 4.16 mSv (chest), and 10.56 mSv (abdomen-pelvis).
  • Significant differences in ED were observed among five pediatric medical imaging centers (P < 0.05).
  • ED decreased with decreasing patient age for head, chest, and abdomen-pelvis CT exams.

Conclusions:

  • Significant variations in ED among imaging centers necessitate optimization strategies.
  • Further reduction in radiation exposure is recommended for head CT in infants and abdomen-pelvis CT.
  • Standardizing CT protocols can improve radiation safety in pediatric imaging.
Abstract

Keywords:
Computed tomography scanNational Cancer Institute CT (NCICT)effective radiation dosepediatric

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