Machine learning based SpO2 prediction from PPG signal's characteristics features

Continuous monitoring of blood oxygen saturation level (SpO2) during the second triage in the high casualty event and determining the hemostability of a patient/victim until arrival to a medical facility, is essential in emergency situations. Using a SmartPatch device attached to a victim's che...

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Vydáno v:2022 IEEE International Symposium on Medical Measurements and Applications (MeMeA) s. 1 - 6
Hlavní autoři: Koteska, Bojana, Mitrova, Hristina, Bogdanova, Ana Madevska, Lehocki, Fedor
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 22.06.2022
Témata:
Decision making
Feature extraction
Filtering
machine learning
Neural networks
oxygen saturation
photoplethysmogram data
Pipelines
Predictive models
Prototypes
signal processing
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Shrnutí:Continuous monitoring of blood oxygen saturation level (SpO2) during the second triage in the high casualty event and determining the hemostability of a patient/victim until arrival to a medical facility, is essential in emergency situations. Using a SmartPatch device attached to a victim's chest that contains a Photoplethysmogram Waveforms (PPG) sensor, one can obtain the SpO2 parameter. Our interest in the process of the SmartPatch prototype development is to investigate the monitoring of a blood oxygen saturation level by using the embedded PPG sensor. We explore acquiring the Sp02 by extracting the set of features from the PPG signal utilizing two Python toolkits, HeartPy and Neurokit, in order to model the Machine learning predictors, using multiple regressors. The PPG signal is preprocessed by various filtering techniques to remove low/high frequency noise. The model was trained and tested using the clinical data collected from 52 subjects with SpO2 levels varying from 83 - 100%. The best experimental results - MAE (1.45), MSE (3.85), RMSE (1.96) and RMSLE (0.02) scores are achieved with the Random Forest regressor in the experiment with 7 features extracted from the both toolkits.
DOI:10.1109/MeMeA54994.2022.9856498