In-Ear SpO2 Monitoring with a Novel Optoelectronic Sensor for Long-Term Conditions

摘要：

　　In this paper,a system which provides a reflective photoplethysmographic (PPG) measurement with an optoelectronic sensor is presented.To analyze the performance of the system concerning SpO2 measurement,we performed human hypoxia studies.Since individual SpO2 values correlate particularly well with the arterial blood oxygen saturation SaO2,which are obtained by arterial blood gas analysis (BGA),a SpO2 measurement in the human ear seems to be possible.Global calibration turned out to be challenging due to a parallel shift between calibration curves.Therefore,an initial single-pointcalibration at normal oxygen saturation is proposed.However,with an experimental setup it could be demonstrated that hydrostatic blood pressure has more influence on reflective pulse oximetry than expected and could be the main reason for the initial bias in SpO2 measurements with small reflective pulse oximetry sensors.

关键词： Photoplethysmography reflective pulse oximetry arterial oxygen saturation ear mold

作者: B. Venema S. Aguiar Santos S. Leonhardt

作者单位: Philips Chair for Medical Information Technology, RWTH Aachen, Aachen, Germany

会议类型: 国际会议

会议名称: World Congress on Medical Physics and Biomedical Engineering (2012年医学物理及生物医学工程国际会议(IFMBE))

会议地点: 北京

会议语种:英文

页码: 1358-1361

在线出版日期: 2012-05-26（万方平台首次上网日期，不代表论文的发表时间）