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Assessment of paediatric CT exposure in a Portuguese hospital

A Neves1, A Nunes, M Rufino

  • 1Faculdade de Ciências e Tecnologia da Universidade de Coimbra, Rua Larga, Coimbra, Portugal. alneves8@gmail.com

Radiation Protection Dosimetry
|March 30, 2012
PubMed

Insights

This study analyzed radiation exposure in pediatric CT scans at a Portuguese hospital. Findings indicate a need to update protocols to align with international guidelines for pediatric radiation safety.

Area of Science:

  • Medical Physics
  • Radiological Protection
  • Pediatric Imaging

Background:

  • Paediatric patients require specific considerations for radiation exposure during computerised tomography (CT) procedures.
  • Optimising radiation doses in paediatric CT is crucial for minimising long-term health risks.

Purpose of the Study:

  • To characterise radiation exposure in paediatric patients undergoing CT examinations in a Portuguese hospital.
  • To analyse dosimetric data and technical parameters to assess compliance with established protocols and international guidelines.

Main Methods:

  • Retrieved and analysed dosimetric data and technical parameters from CT examinations over one year.
  • Considered five paediatric age groups (0-18 years) and analysed common CT examinations (head, ears, sinuses, chest, abdomen).
  • Compared exposure settings (kVp, mAs) with local clinical protocols and calculated dose index, dose length product, and effective dose per age group.

Main Results:

  • Presented average CT dose index (CTDIvol) and dose length product (DLP) values for each paediatric age group.
  • Estimated mean effective doses were calculated and presented alongside dosimetric data.
  • Identified inconsistencies between current practices and optimal paediatric CT protocols.

Conclusions:

  • Results highlight a clear need for a protocol review to align paediatric CT practices with international optimisation guidelines.
  • Emphasised the necessity for increased staff awareness regarding Radiological Protection principles in CT, particularly for paediatric patients.

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