使用多种成像方式评估个人辐射保护设备的等价性和完整性
Kirill Skovorodko1, Inga Andriulevičiūtė1,2, Leonid Krynke1
1Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania.
定期检查个人辐射保护设备 (PRPE) 对辐射安全至关重要. 一项研究发现,专门的查系统是评估PRPE完整性和等效性最有效的,确保职业安全.
科学领域:
- 医学物理 医学物理
- 辐射保护 辐射保护
- 质量保证 质量保证 质量保证
背景情况:
- 个人辐射保护设备 (PRPE) 对于尽量减少在医疗机构中对电离辐射的职业暴露至关重要.
- 随着时间的推移,PRPE的降解需要定期检查,以确保持续的辐射安全.
- 有效的质量保证 (QA) 计划需要准确和实用的方法来评估PRPE完整性和等效性.
研究的目的:
- 在评估PRPE完整性和等效性时,比较各种成像模式的性能.
- 确定质量保证计划在PRPE评估中的最佳方法.
- 评估使用和处理对PRPE保护性能的影响.
主要方法:
- 在四年内,从20家制造商那里评估了1063件PRPE项目.
- 视觉,触觉检查,然后使用放射学,光学,计算机断层扫描 (CT) 和专门的PRPE测试系统 (FLOWD 8020) 进行成像.
- 使用剂量计和基于图像的方法确定与经过认证的参考薄膜相对应的同等性;完整性在四级尺度上进行评估.
主要成果:
- 88.8%的PRPE物品没有缺陷;11.2%的PRPE物品有裂或撕裂.
- 等效率:74.3%在±5%,13.8%偏离5%至10%,11.9%>10%. 等效率:7.3%在±5%,13.8%偏离5%至10%,11.9%>10%.
- 所有的成像模式都显示出可比的准确性,但专用系统提供了更高的工作流效率和报告.
结论:
- 对PRPE进行常规检查对于保持职业辐射安全至关重要.
- 建议采用标准化的测试协议和检查间隔,以保持一致的质量保证实践.
- 一个专门的查系统提供了PRPE的高效和全面的评估.
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