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Pediatric Computed Tomography Dose Optimization Strategies: A Literature Review

Khalid Mohammed Salim Al Mahrooqi1, Curtise Kin Cheung Ng1, Zhonghua Sun1

  • 1Department of Medical Radiation Sciences, Curtin University, Perth, Western Australia, Australia.

Journal of Medical Imaging and Radiation Sciences
|May 5, 2019
PubMed

Insights

Optimizing computed tomography (CT) radiation dose in pediatric patients is crucial. This review identifies dose-saving techniques and proposes optimized CT protocols for children, aiding medical professionals.

Area of Science:

  • Radiography
  • Medical Imaging
  • Pediatric Radiology

Background:

  • Computed tomography (CT) significantly contributes to medical radiation exposure.
  • CT use is increasing, especially in pediatric populations.
  • Optimizing CT dose for children presents unique challenges compared to adults.

Purpose of the Study:

  • To review current CT dose-saving techniques specifically for pediatric patients.
  • To discuss strategies for optimizing CT protocols in children.
  • To propose optimized pediatric CT protocols.

Main Methods:

  • A comprehensive literature search was performed across multiple databases (Medline, PubMed, Scopus, etc.).
  • Keywords included CT, pediatric, optimization, protocol, and radiation dose.
  • The search focused on articles published between 2004 and 2014.

Main Results:

  • Seventy-seven relevant articles were identified.
  • Key dose optimization strategies discussed include tube voltage/current, iterative reconstruction, bowtie filters, and scan parameters (pitch, collimation, time).
  • An example of age- and size-specific optimized pediatric CT protocols for 64-slice scanners was developed.

Conclusions:

  • Various technical strategies can optimize pediatric CT dose.
  • The proposed protocols offer a framework for medical radiation technologists, radiologists, and physicists.
  • Implementing optimized protocols is essential for minimizing radiation exposure in pediatric CT scans.
Abstract

Keywords:
Computed tomographyoptimizationpediatricprotocolradiation dose

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