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Dose audit and evaluation of work practices during barium procedures using digital radiography techniques
Roshan S Livingstone1, Philomina Augustine, I Aparna
1Department of Radiodiagnosis, Christian Medical College, Vellore 632004, India.
Health Physics
|September 11, 2004
Summary
This study estimated patient radiation doses during barium procedures using digital radiography. Optimizing exposure factors and using copper filters effectively reduced radiation exposure, ensuring patient safety.
Area of Science:
- Radiological Sciences
- Medical Physics
- Diagnostic Imaging
Background:
- Barium procedures are common diagnostic imaging techniques.
- Estimating effective dose and organ doses is crucial for patient safety.
- Digital radiography offers advancements in imaging but requires dose evaluation.
Purpose of the Study:
- To estimate effective dose and organ doses during barium procedures using digital radiography.
- To evaluate work practices and their impact on patient radiation exposure.
- To assess the efficacy of dose reduction strategies.
Main Methods:
- Dose Area Product (DAP) measurements were used to calculate effective doses.
- 138 patients undergoing barium swallow, meal, and enema procedures were studied.
- Dose auditing considered patient doses, imaging techniques, and image quality.
Main Results:
- Effective dose varied across procedures: barium swallow (0.03–3.5 mSv), barium meal (0.18–2.62 mSv), and barium enema (0.56–4.24 mSv).
- An additional 0.2 mm copper filter significantly reduced patient doses.
- Optimized exposure factors led to lower patient doses.
Conclusions:
- Digital radiography enables effective dose estimation for barium procedures.
- Copper filtration and optimized exposure factors are key to reducing patient radiation doses.
- Regular dose auditing is essential for maintaining radiation safety standards.