通过皮肤对胎儿心率与母亲心率进行区分:胎儿氧计概念验证
Begum Kasap1, Kourosh Vali2, Weitai Qian2
1Department of Electrical and Computer Engineering, University of California Davis, Davis, CA, USA. bkasap@ucdavis.edu.
Reproductive sciences (Thousand Oaks, Calif.)
|May 10, 2024
概括
一种新的跨腹胎脉冲氧计 (TFO) 显示出在非压力测试期间准确测量胎儿心率 (FHR) 的前景. 这项技术可以改善胎儿监测,减少剖腹产率.
科学领域:
- 生物医学工程 生物医学工程
- 孕产妇和胎儿医学 孕产妇和胎儿医学
- 信号处理 信号处理
背景情况:
- 电子胎儿心率监测 (EFHRM) 有局限性,包括增加剖腹产率和新生儿缺氧结果的最小改善.
- 目前的EFHRM间接评估胎儿氧化,需要更客观的监测方法.
- 跨腹胎脉冲氧计 (TFO) 是一种新技术,旨在提供直接的胎儿氧化测量.
研究的目的:
- 评估跨腹胎脉冲氧计 (TFO) 在非压力测试 (NST) 期间捕获人类胎儿心率 (FHR) 信号的可行性.
- 建立TFO在人类受试者中区分孕产妇和胎儿心脏信号的能力的概念证明.
- 为了为未来的研究奠定基础,使用TFO监测胎儿的氧和度.
主要方法:
- 八名符合特定纳入标准的孕妇 (单身,妊娠36周以上) 接受了15-20分钟的NST疗程.
- 参考母心率 (MHR) 和FHR使用手指脉冲氧计和心脏图谱进行记录.
- 来自TFO的数据与参考测量数据进行了比较,使用根平均平方误差,平均绝对误差和布兰德-阿尔特曼分析.
主要成果:
- TFO与参考FHR和MHR测量结果有显著的相关性 (p < 0.001).
- 总的平方根平均误差为FHR为9.7 BPM,而MHR为4.4 BPM.
- 布兰德-阿尔特曼分析显示,FHR的平均偏差为-3.9 ± 8.9 BPM,一致性极限从-21.4到13.6 BPM.
结论:
- 在NST期间,TFO成功捕获并区分了人类受试者的母体和胎儿心脏信号.
- 这项概念验证研究验证了TFO作为胎儿监测的非侵入性工具的潜力.
- 需要进一步的研究来推进TFO技术,以便在胎儿氧和度测量中临床应用.
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