Paediatric x-ray radiation dose reduction and image quality analysis.

Area of Science:

• Medical Physics
• Pediatric Radiology
• Radiation Safety

Background:

• Childhood radiographic x-ray exposure poses risks of radiation-induced cancer.
• Previous audits identified initial exposure factors at an acute NHS hospital trust.
• European and UK guidance exist for radiographic x-ray tube potentials.

Purpose of the Study:

• To reduce radiation dose from radiographic x-ray exposure in children.
• To optimize exposure factors in compliance with European guidance.
• To assess the impact of dose reduction on diagnostic image quality.

Main Methods:

• Preliminary audit of initial exposure factors.
• Comparison with European and UK radiographic guidance.
• Image quality assessment using anatomical criteria scoring and visual grading characteristics analysis.
• Iterative optimization of chest and pelvis exposures.

Main Results:

• New exposure factors introduced, compliant with European guidance.
• Dose reduction achieved for pediatric age groups (7%-55% decrease in critical organ dose).
• Diagnostic image quality confirmed by clinicians throughout the process.
• Visual grading analysis showed equivalent image quality between preliminary and final factors (average result of 0.5).

Conclusions:

• Collaborative efforts successfully reduced pediatric radiation doses from radiographic x-rays.
• Optimized exposure factors maintained diagnostic image quality.
• The reported process and doses aid other hospitals in minimizing pediatric radiation risks.