通过干涉度近红外光谱学 (iNIRS) 通过腹腔回收胎儿信号
Shing-Jiuan Liu1, Su Yeon Lee2, Christopher Pivetti2
1Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA 95616, USA.
Biomedical optics express
|November 29, 2023
概括
一种新的干扰测近红外光谱法 (iNIRS) 方法可以进行非侵入性的腹横胎脉冲氧计. 这种技术成功地提取了深层胎儿心跳信号,克服了传统方法的挑战.
科学领域:
- 生物医学光学 生物医学光学
- 医疗器械 医疗器械
- 胎儿监测 胎儿监测 胎儿监测
背景情况:
- 非侵入性横腹腹胎脉冲氧计对于在分娩期间评估胎儿健康至关重要.
- 传统的连续波 (CW) 脉冲氧计与深层组织透以及分离孕产妇和胎儿信号作斗争.
研究的目的:
- 引入和验证一种新的干扰度近红外光谱学 (iNIRS) 方法,用于跨腹胎脉冲氧计.
- 证明iNIRS能够从深层母体组织中提取弱胎儿信号的能力.
主要方法:
- 开发了一个iNIRS系统,使用多模光纤和模式场转换器来增强信号检测.
- 测试了系统在1.1厘米的源探测器距离下检测来自深层组织 (超过1.6厘米) 的信号的能力.
- 验证了使用孕羊模型提取胎儿心跳信号的方法.
主要成果:
- 与传统方法相比,iNIRS系统成功检测到来自深层组织的信号,显示出更好的透能力.
- 胎儿心跳信号被实验测量并从怀孕羊模型的深层组织中提取出来.
- 这种方法有效地拒绝了强烈的表面母体信号,隔离了较弱的胎儿信号.
结论:
- 干涉测量近红外光谱学 (iNIRS) 是一种对非侵入性横腹胎儿脉冲氧计的有前途的技术.
- 这项研究验证了向开发iNIRS用于胎儿氧和监测的关键步骤.
- 开发的方法为未来在分娩期间评估胎儿健康的进展提供了基础.
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