• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society >Evaluation of a multimode photoplethysmographic sensor during cuff-induced hypoperfusion
【24h】

Evaluation of a multimode photoplethysmographic sensor during cuff-induced hypoperfusion

机译：袖带性灌注不足过程中多模式光电容积描记传感器的评估

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Photoplethysmography (PPG) is a technique widely used to monitor volumetric blood changes induced by cardiac pulsations. Pulse oximetry uses the technique of PPG to estimate arterial oxygen saturation values(SpO2). In poorly perfused tissues, SpO2 readings may be compromised due to the poor quality of the PPG signals. We have developed a new multimode PPG measurement system which utilizes a reflectance PPG probe that operates in reflectance, transmittance and transreflectance mode simultaneously aiming to improve the quality of the PPG signals in cases of poor peripheral perfusion. In order to evaluate the performance of the probe, experiments were performed in healthy volunteers. A blood pressure cuff was used to induce systematic and controlled artificial hypoperfusion while PPG signals were recorded using all three modes. It was found that the amplitude of the transreflectance signal was significantly greater than the other two conventional PPG sensors at all occlusion pressures, suggesting the potential for improved signal acquisition in patients with peripheral hypoperfusion.
机译：光电容积描记术（PPG）是一种广泛用于监视由心脏搏动引起的体积血液变化的技术。脉搏血氧饱和度法使用PPG技术估算动脉血氧饱和度值（SpO2）。在灌注不良的组织中，由于PPG信号的质量较差，SpO2读数可能会受到影响。我们已经开发了一种新的多模PPG测量系统，该系统利用反射PPG探头同时以反射，透射和透射反射模式工作，旨在在周围灌注不良的情况下提高PPG信号的质量。为了评估探针的性能，在健康志愿者中进行了实验。使用血压袖带诱导系统性和受控的人工低灌注，同时使用所有三种模式记录PPG信号。发现在所有阻塞压力下，透反射信号的幅度都明显大于其他两个传统的PPG传感器，这表明在周围灌注不足的患者中改善信号采集的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号