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Updated: Jul 5, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
[Radiation exposure of children in pediatric radiology]
1Abteilung Radiologie, Dr. von Haunersches Kinderspital der Universität München.
Insights
A comprehensive database of pediatric X-rays reveals significant changes in examination frequency and duration over 30 years. This data is crucial for radiation dose tracking and quality assurance in pediatric radiology.
Area of Science:
- Pediatric Radiology
- Medical Informatics
- Radiation Dosimetry
Background:
- Electronic databases are essential for managing large volumes of medical imaging data.
- Longitudinal data collection is vital for understanding trends in healthcare practices.
- Pediatric radiology requires specialized approaches to data analysis and quality control.
Purpose of the Study:
- To analyze 30 years of pediatric X-ray and fluoroscopic examination data.
- To establish a comprehensive database for quality assurance and dose monitoring.
- To investigate changes in pediatric radiological procedures over time.
Main Methods:
- Utilized a database of 276,739 radiological examinations from newborns to adolescents.
- Collected data included patient demographics, procedure types, settings, dose measurements (dose area product), referral criteria, and diagnoses.
- Developed custom algorithms (PADOS program) for data preparation and analysis.
Main Results:
- Observed substantial changes in the frequency and duration of pediatric X-ray and fluoroscopic examinations over 30 years.
- Newborns and infants showed a higher indication rate for X-ray diagnostics compared to older children.
- A decline in the number of patients with high examination counts and reduced fluoroscopy times was noted.
Conclusions:
- A comprehensive database is fundamental for quality assurance in pediatric X-ray diagnostics.
- Such databases enable accurate calculation of cumulative radiation doses.
- This data supports follow-up epidemiological studies in pediatric populations.
Purpose:
Analysis of all relevant data of X-ray examinations performed in a university children's hospital and stored electronically in a database since 1976.
Materials And Method:
After 30 years of data gathering, the database now covers 276 739 radiological examinations (radiographs & fluoroscopies) of all age groups from newborns to adolescents. This database now encompasses basic personal patient data, type of the radiological procedure, individual radiographic/fluoroscopic settings, dose measurements (dose area product), individual referral criteria and radiological diagnosis. The preparation and analysis of this database was made with a set of self-written algorithms (PC program: PADOS [Programm zur PAdiatrischen DOSimetrie = Program for PEdiatric DOSimetry]).
Results:
The frequency of childhood X-rays and fluoroscopic examinations per patient has substantially changed over the last 30 years. We could show that the indication for X-ray diagnostics for newborns and infants was higher than for the other childhood age groups. In addition, the number of patients who had a high number of X-ray examinations clearly declined in the last years and the time for standard fluoroscopic examinations was considerably reduced.
Conclusions:
A comprehensive database as described is a prerequisite for quality assurance in X-ray diagnostics as well as for the calculation of cumulative radiation dose and follow-up epidemiological studies.
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