评估模拟无辐射疗法对息治疗的环境影响
Jimin Lee1, Joanna Javor2, CJillian Tsai2
1University of Toronto, Temerty Faculty of Medicine, Toronto, Ontario, Canada.
概括
无模拟 (Sim-free) 辐射疗法显著减少了运行排放和患者的旅行. 然而,更高的线性加速器 (LINAC) 使用增加了整体碳成本,突出了对工作流程优化的需要,以使SIM-free RT成为优越的环境选择.
科学领域:
- 辐射瘤学的环境影响评估.
- 可持续的医疗保健实践.
- 医学技术的生命周期评估.
背景情况:
- 放射治疗工作流程涉及大量的运营和资本支出.
- 评估医疗程序的环境足迹对于可持续性至关重要.
- 无模拟 (Sim-free) 辐射治疗 (RT) 旨在简化息护理的提供.
研究的目的:
- 评估SIM-free RT工作流程对息治疗的环境影响.
- 为了比较运营支出 (OpEx) 和资本支出 (CapEx) 在SIM-free与传统RT.
- 确定影响不同RT工作流程碳足迹的关键因素.
主要方法:
- 对16名接受无SIMRT治疗的患者和16名接受常规RT治疗的患者进行了比较分析.
- 对OpEx (旅行,能源,HVAC) 和CapEx (设备,维护,建筑) 的二氧化碳等效 (CO2e) 排放的计算.
- 对患者旅行距离和LINAC占用时间的灵敏度分析.
主要成果:
- 无SIM的RT减少了每名患者的OpEx排放量58% (10.3公斤CO2e与24.6公斤CO2e) 由于消除了CT模拟旅行.
- 包括CapEx在内,没有Sim的RT总排放量更高 (82.4公斤CO2e比49.3公斤CO2e),因为LINAC的使用量增加 (45分钟比15分钟).
- 灵敏度分析表明,如果将LINAC时间缩短到20-25分钟,那么Sim-free RT就会在环境上变得更优越.
结论:
- 无SIM的RT大大降低了运营的碳足迹和患者的旅行负担.
- 对于LINAC的制造和维护来说,这意味着相当大的碳成本.
- 优化LINAC占用率对于SIM-free RT来说至关重要,以实现与传统工作流相比更优越的整体环境性能.
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