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Updated: Aug 14, 2025
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X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
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[Development of a X-ray Exposure Dose Control Tool for CT Examination by Using Spreadsheet Software].
1Furuya Urological Clinic.
Nihon Hoshasen Gijutsu Gakkai Zasshi
|January 18, 2023
Summary
This study developed spreadsheet software for monitoring computed tomography (CT) X-ray doses, ensuring patient safety. The tool effectively identified outlier doses, supporting optimized radiation levels.
Area of Science:
- Radiology and Medical Imaging
- Health Informatics
- Radiation Dosimetry
Context:
- Computed Tomography (CT) examinations involve significant radiation exposure.
- Accurate monitoring and optimization of X-ray dose are crucial for patient safety and effective medical imaging.
- Establishing and adhering to national diagnostic reference levels (DRLs) is essential for quality assurance in CT procedures.
Purpose:
- To develop and evaluate user-friendly software for monitoring and optimizing X-ray dose in CT examinations.
- To utilize spreadsheet software for efficient data management and analysis of CT radiation reports.
- To compare institutional CT dose data against national diagnostic reference levels (Japan DRLs 2020).
Summary:
- A novel spreadsheet-based software was developed to analyze CTDIvol and DLP from 2,128 examinations (April 2020-April 2022) of patients weighing 50-70 kg.
- Analysis revealed that most patient doses were within acceptable ranges compared to Japan DRLs 2020; however, seven outlier cases were identified.
- Manual data entry errors accounted for three outliers, while the reasons for the remaining four outliers were investigated.
Impact:
- The developed software effectively identifies outlier CT dose values, aiding in the optimization of radiation exposure.
- Implementation of this software can help maintain patient CT doses within the 'justification and optimization' principles.
- This tool provides a practical approach for healthcare institutions to manage and improve radiation safety in CT imaging.
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