基于电容传感器的呼吸运动实时多场景监测方法的开发
Yongqiang Wang1, Bing Li1, Xuhua Xiao2
1The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital Zhengzhou China.
Precision radiation oncology
|January 1, 2026
概括
使用电容传感器和安全气囊的新呼吸运动监测系统提高了胸部和腹部瘤的放射治疗精度. 这种多功能系统通过精确跟踪呼吸运动来提高临床疗效.
科学领域:
- 生物医学工程 生物医学工程
- 医学物理 医学物理
- 放射治疗技术 放射治疗技术
背景情况:
- 胸部和腹部瘤的放射治疗受到呼吸运动的挑战.
- 精确的呼吸监测至关重要,以尽量减少对健康器官的辐射剂量.
- 现有的监控系统可能缺乏多功能性或成本效益.
研究的目的:
- 开发一个先进的呼吸运动监测系统.
- 为了提高放射治疗的准确性和减少对周围器官的剂量.
- 创建一个适用于多种临床情景的多功能系统.
主要方法:
- 气囊结构与平行板电容传感器的集成.
- 通过因内部气压变化的电容变化进行实时监控.
- 评估使用动态胸部幻影与正弦和第四级共弦波形.
主要成果:
- 该系统实现了10mm的位移测量范围,灵敏度为0.1mm.
- 高稳定性与低电容度测量标准偏差 (0.0011) 证明.
- 在各种呼吸模式和长期运行中可靠的性能.
结论:
- 开发了一种经济高效,简单,多功能的呼吸运动监测系统.
- 该系统结合了压力带和红外监控的优势.
- 这项技术提高了胸部和腹部瘤的放射治疗精度.
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