在放射治疗中使用压力传感器阵列用于多功能患者监测:可行性研究
Hosang Jeon1, Dong Woon Kim1, Ji Hyeon Joo1,2
1Department of Radiation Oncology and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea.
一种新型压力传感器阵列 (PSA) 在放射治疗期间有效监测患者的呼吸,其性能与现有系统相提并论. 这项技术为辐射瘤学中精确瘤向提供了一个有希望的,可能更容易获得的解决方案.
科学领域:
- 医学物理 医学物理
- 辐射瘤学 辐射瘤学
- 生物医学工程 生物医学工程
背景情况:
- 现代放射治疗技术 (IMRT,SBRT) 的精度需要在呼吸过程中精确地定位瘤.
- 目前的呼吸道监测系统面临复杂性,患者不适和高成本等挑战.
- 有效的呼吸监测对于尽量减少放射治疗中的并发症至关重要.
研究的目的:
- 评估一种新型压力传感器阵列 (PSA) 的可行性,用于在放射治疗期间监测呼吸.
- 评估PSA克服现有的呼吸监测方法的局限性的能力.
- 探索PSA在呼吸监测之外的潜在应用,例如患者稳定性评估.
主要方法:
- 一个31元素的PSA被测试在12名志愿者躺在治疗沙发上.
- 参与者在没有外部指导的情况下自然呼吸.
- 对PSA的性能进行了比较,与基于摄像头的呼吸监测系统 (RPM) 相比,分析了压力分布,重量灵敏度和信号相关性.
主要成果:
- PSA 证明了施加的重量和输出之间的线性关系,证实了压力灵敏度.
- 在PSA和RPM信号之间观察到高相关性 (平均R2=0.9391),表明持续的呼吸监测.
- 实时测量体重分布允许在模拟放射治疗期间监测患者的运动.
结论:
- 在放射治疗中,PSA是用于呼吸系统监测的可行和有前途的工具.
- 它的性能可与已建立的RPM系统相美,对患者监测有额外的好处.
- 建议进行进一步的研究,以进行比较研究和实体患者应用,包括呼吸训练.
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