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Establishing Diagnostic Reference Levels for Paediatric CT Imaging: A Multi-Centre Study.

Yassine Bouchareb1, Manar Al Kharusi2, Amani Al Maqbali2

  • 1Department of Radiology and Molecular Imaging, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat 123, Oman.

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Summary
This summary is machine-generated.

This study established diagnostic reference levels (DRLs) for paediatric CT scans, revealing that radiation doses increase with patient age. The findings emphasize optimizing protocols for paediatric computed tomography (CT) examinations to ensure safety.

Keywords:
CTDIvolDLPcomputed tomographydiagnostic reference levelpaediatric

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Area of Science:

  • Medical Imaging
  • Radiology
  • Radiation Protection

Background:

  • Computed Tomography (CT) is vital for organ assessment but raises radiation exposure concerns in children.
  • Establishing pediatric diagnostic reference levels (DRLs) is crucial for monitoring and controlling radiation doses.

Purpose of the Study:

  • To establish DRLs for common pediatric CT examinations.
  • To aid in monitoring and controlling radiation exposure in pediatric patients.

Main Methods:

  • Analyzed dosimetry records from 5956 pediatric CT scans (Head, Chest, Abdomen Pelvis, Chest Abdomen Pelvis).
  • Collected CT dose-index volume (CTDIvol) and dose-length product (DLP) data, stratified by age and weight.
  • Determined DRLs based on International Commission on Radiological Protection (ICRP) recommendations.

Main Results:

  • Derived DRLs for CTDIvol and DLP across different age groups (<1, 1-5, 6-10, 11-15 years).
  • Observed a trend of increasing CTDIvol and DLP DRLs with patient age.
  • Noted variations in DLP DRLs for Chest and Abdomen Pelvis examinations based on weight.

Conclusions:

  • Findings indicate a need to review and optimize CT scanning protocols, especially for Chest and Abdomen Pelvis exams.
  • The established DRLs align with international findings.
  • Recommends establishing national pediatric DRLs to improve radiology practices and safety standards.