Related Experiment Video
Updated: Jun 8, 2025
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X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
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[Long-term Reproducibility Evaluation of Fluoroscopy Dose Rate in Angiography Equipment]
Kazuya Mori1,2, Kouhei Makabe1, Ryou Sekiguchi1
1Department of Radiological Technology, Saiseikai Kawaguchi General Hospital.
Nihon Hoshasen Gijutsu Gakkai Zasshi
|November 4, 2024
Summary
This study monitored fluoroscopic dose rates in angiography systems over eight years. Results show stable X-ray output, with dose rate fluctuations within ±5%, ensuring reliable patient dose management.
Area of Science:
- Medical Physics
- Radiological Imaging
- Radiation Safety
Context:
- Diagnostic reference levels (DRLs) are crucial for patient dose management in angiography.
- Annual measurement of DRLs is recommended to ensure radiation safety.
- Long-term stability of fluoroscopic dose rates is essential for consistent angiography procedures.
Purpose:
- To evaluate the long-term fluctuations of fluoroscopic dose rate in a specific angiography system.
- To assess the stability of X-ray output over an eight-year period (2015-2022).
- To determine if annual DRL measurements are sufficient for monitoring system performance.
Summary:
- Fluoroscopic dose rates were measured quarterly over eight years using an X-ray output analyzer.
- The average dose rate was 353.29±9.11 µGy/s, with a maximum measurement error of 4.67%.
- Annual uncertainty and coefficient of variation remained within acceptable limits, indicating stable system performance.
Impact:
- The findings demonstrate consistent X-ray output from the angiography system over an extended period.
- This stability supports the reliability of established DRLs for patient dose monitoring.
- The study validates the effectiveness of current measurement protocols for ensuring radiation safety in angiography.
