End-To-End Personalized Cuff-Less Blood Pressure Monitoring Using ECG and PPG Signals

ICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)(2024)

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Cuffless blood pressure (BP) monitoring offers the potential for continuous, non-invasive healthcare but has been limited in adoption by existing models relying on handcrafted features from ECG and PPG signals. To overcome this, researchers have looked to deep learning. Along these lines, in this paper, we introduce a novel end-to-end model based on transformers. Further, we also introduce a novel contrastive loss-based loss function for robust training. To study the limits of performance for our proposed ideas, we first study personalized models trained on large subject-specific datasets, and achieve an average mean absolute error of 1.08/0.68 mmHg for systolic (SBP) and diastolic BP (DBP) across all subjects while achieving a best case of 0.29/0.19 mmHg. Further, in the case where subject-specific data is scarce, we leverage transfer learning using multi-subject data, and show that our model outperforms State-of-the-Art (SOTA) methods across varying amounts of subject-specific data.
Blood Pressure Monitoring,Cuffless Estimation,Signal Processing in Healthcare,Transformer Models
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