Related Experiment Video
Updated: Nov 2, 2025
X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
REDUCING PELVIS RADIOGRAPH EXPOSURE IN CHILDREN USING A DOSE SIMULATION X-RAY RESEARCH SOFTWARE
Ronan Boënnec1, Paul-Armand Dujardin2, Benjamin Meunier1
1Pediatric Radiology Department, Clocheville Hospital, CHRU of Tours, Tours 37000, France.
Insights
Pediatric pelvis X-ray doses can be reduced by 20% without compromising image quality. This optimization is achievable for children within specific weight ranges, enhancing radiation safety.
Area of Science:
- Radiology
- Medical Imaging
- Radiation Dose Optimization
Background:
- Pelvis radiography is a common diagnostic imaging procedure in pediatric care.
- Determining the minimum effective radiation dose is crucial for patient safety and reducing potential risks.
- Current protocols may not always reflect the lowest possible radiation exposure while maintaining diagnostic quality.
Purpose of the Study:
- To identify the minimum radiation dose for pediatric pelvis X-rays without sacrificing image quality.
- To evaluate the impact of reduced radiation doses on the diagnostic accuracy of pelvis radiographs in children.
- To assess the utility of dose simulation software in optimizing pediatric X-ray protocols.
Main Methods:
- Sixty children undergoing pelvis X-rays were divided into four weight-based groups.
- A specialized software simulated six reduced radiation doses (100% down to 32%) for each radiograph.
- Two radiologists blindly assessed the image quality of 360 radiographs using a Likert scale.
Main Results:
- No significant difference in image quality scoring was observed between the original dose and 80% dose simulations for children weighing 0-15 kg and over 35 kg.
- Inter-observer agreement for image quality assessment was moderate to very good.
- A potential 20% dose reduction is feasible in the studied pediatric population.
Conclusions:
- Pelvis X-ray radiation doses can be reduced by up to 20% in pediatric patients without compromising diagnostic image quality, particularly in specific weight categories.
- Dose simulation software serves as a valuable tool for radiation dose optimization processes in diagnostic imaging.
- Implementing these findings can lead to improved radiation safety for children undergoing pelvis radiography.
Abstract:
Pelvis radiography is a frequent X-ray examination. The objective of our study was to determine the minimum dose to be delivered without reducing the quality. We included 60 children having a pelvis X-ray in four groups that were equally represented by weight ranges. A software simulated, for each radiograph, six additional simulated photonic noise images corresponding to 100, 80, 64, 50, 40 and 32% of the initial dose. The 360 radiographs were blindly scored by two radiologists using a semi-quantitative Likert scale. There was no significant difference in scoring between the reference radiograph and simulated radiographs at 80% of the dose in children between 0 and 15 kg and over 35 kg. Inter-observer reproducibility was moderate to very good. Pelvis X-ray doses might be reduced by 20% in children in our institution. Software that produces simulated X-ray with decreasing dose might be a useful tool for an optimization process.
