使用60 GHz FMCW雷达进行非侵入性和非接触性关静脉脉冲测量的可行性研究
Shatabdi Das1, Hadi Afsharan2, Girish Dwivedi2,3
1School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales, Australia.
Royal Society open science
|June 26, 2025
概括
这项研究提出了一种使用60 GHz FMCW雷达估计关静脉脉冲 (JVP) 的新型非侵入性方法. 这种雷达技术为无接触式JVP监控和心力衰竭管理提供了有希望的替代方案.
科学领域:
- 生物医学工程 生物医学工程
- 心血管诊断心血管诊断服务
- 雷达技术应用 雷达技术应用
背景情况:
- 状静脉脉冲 (JVP) 评估对于评估心血管和肺部健康至关重要.
- 目前的JVP评估方法面临诸多挑战,包括部脂肪,解剖变异和不理想的患者定位.
- 中枢静脉导管,金标准,是侵入性的,不适合常规或长期监测.
研究的目的:
- 引入和验证一种使用60 GHz频率调制连续波 (FMCW) 雷达估计JVP的非侵入性方法.
- 评估无接触式JVP监测的可行性,以早期检测和远程管理诸如心力衰竭等疾病.
主要方法:
- 使用60 GHz FMCW雷达系统捕捉皮肤表面的静脉脉动.
- 使用 Eigenbeam 形成技术来提高信号噪声比和脉冲清晰度.
- 雷达参数得到了优化,并与光电脉冲扫描 (PPG) 和历史导管数据进行了验证.
主要成果:
- 雷达系统成功地在-20°至+20°的到达方向范围内实现了信号定位,表明了高精度.
- 优化的雷达参数显示出一致的性能,尽管可能需要对特定主体进行校准.
- 从雷达获得的JVP信号与心力衰竭患者的导管数据相比,显示出临床相关性.
结论:
- 60 GHz FMCW 雷达为无接触的 JVP 估计提供了一种可行的非侵入性方法.
- 这项技术具有显著的潜力,可以改善心力衰竭的早期检测和远程管理.
- 进一步的研究可能涉及对象特定的校准,以考虑到个体解剖学差异.
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