Paperdoi:10.1109/embc.2015.7320237
Investigation of photoplethysmography and arterial blood oxygen saturation from the ear-canal and the finger under conditions of artificially induced hypothermia
2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
TL;DR
Pulse oximeters relay on the technique of photoplethysmography (PPG) to estimate arterial oxygen saturation (SpO2). In conditions of poor peripheral perfusion such as hypotension, hypothermia, and vasoconstriction, pulse oximeters become inaccurate or provide no reading. This is due to the poor quality of the PPG signals detected at that instance.
- Published in 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (2015).
Abstract
Pulse oximeters relay on the technique of photoplethysmography (PPG) to estimate arterial oxygen saturation (SpO2). In conditions of poor peripheral perfusion such as hypotension, hypothermia, and vasoconstriction, pulse oximeters become inaccurate or provide no reading. This is due to the poor quality of the PPG signals detected at that instance. In order to overcome this problem, the ear canal has been proposed as a alternative measurement site for measuring reliable SpO2. Hence, an ear canal PPG sensor was developed along with a PPG processing system. The performance of the sensor was evaluated by measuring the red and infrared PPGs and SpO2 from 10 healthy volunteers undergoing artificially induced hypothermia. The results from the ear canal sensor were compared with simultaneously acquired results from the finger. Hypothermia was induced by exposing the volunteers to cold temperatures of 10 ± 1°C. The results acquired suggest that the ear canal pulse oximeter endures more in estimating SpO2 values accurately when compared with the more common finger pulse oximeter.
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Cite this paper
Budidha, K., & Kyriacou, P. A. (2015). Investigation of photoplethysmography and arterial blood oxygen saturation from the ear-canal and the finger under conditions of artificially induced hypothermia. 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. https://doi.org/10.1109/embc.2015.7320237
Budidha, K and P A Kyriacou. 2015. "Investigation of photoplethysmography and arterial blood oxygen saturation from the ear-canal and the finger under conditions of artificially induced hypothermia." 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. https://doi.org/10.1109/embc.2015.7320237.
Budidha, K. and Kyriacou, P. A. (2015) 'Investigation of photoplethysmography and arterial blood oxygen saturation from the ear-canal and the finger under conditions of artificially induced hypothermia', 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. doi: 10.1109/embc.2015.7320237.
Budidha, K, and P A Kyriacou "Investigation of photoplethysmography and arterial blood oxygen saturation from the ear-canal and the finger under conditions of artificially induced hypothermia." 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2015. https://doi.org/10.1109/embc.2015.7320237.
K. Budidha and P. A. Kyriacou, "Investigation of photoplethysmography and arterial blood oxygen saturation from the ear-canal and the finger under conditions of artificially induced hypothermia," 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2015, doi: 10.1109/embc.2015.7320237.
@inproceedings{budidha2015investigation,
title = {{Investigation of photoplethysmography and arterial blood oxygen saturation from the ear-canal and the finger under conditions of artificially induced hypothermia}},
author = {Budidha, K. and Kyriacou, P. A.},
year = {2015},
booktitle = {2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society},
doi = {10.1109/embc.2015.7320237}
}Added to the ChatPPG research hub
