Noninvasive cardiac output estimation using a novel photoplethysmogram index
文献类型：会议论文
| 作者 | Wang L.; Pickwell-MacPherson Emma; Liang Y. P.; Zhang Y. T. |
| 出版日期 | 2009 |
| 会议名称 | Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
| 英文摘要 | Cardiac output (CO) monitoring is essential for indicating the perfusion status of the human cardiovascular system under different physiological conditions. However, it is currently limited to hospital use due to the need for either skilled operators or big, expensive measurement devices. Therefore, in this paper we devise a new CO indicator which can easily be incorporated into existing wearable devices. To this end, we propose an index, the inflection and harmonic area ratio (IHAR), from standard photoplethysmographic (PPG) signals, which can be used to continuously monitor CO. We evaluate the success of our index by testing on sixteen normotensive subjects before and after bicycle exercise. The results showed a strong intra-subject correlation between IHAR and COimp measured by the bio-impedance method in fifteen subjects (mean r = 0.82, p<0.01). After least squares linear regression, the precision between COimp and CO estimated from IHAR (COIHAR) was 1.40 L/min. The total percentage error of the results was 16.2%, which was well below the clinical acceptance limit of 30%. The results suggest that IHAR is a promising indicator for wearable and noninvasive CO monitoring. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/2574]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | 2009 |
| 推荐引用方式 GB/T 7714 | Wang L.,Pickwell-MacPherson Emma,Liang Y. P.,et al. Noninvasive cardiac output estimation using a novel photoplethysmogram index[C]. 见:Annual International Conference of the IEEE Engineering in Medicine and Biology Society. |
入库方式： OAI收割
来源：深圳先进技术研究院
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