期刊
SENSORS
卷 21, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/s21051867
关键词
arterial blood pressure (ABP); photoplethysmogram (PPG); deep learning; U-net; continuous; non-invasive
The study proposes a method using deep learning architecture for blood pressure monitoring, estimating non-invasively with fingertip PPG signals. The results demonstrate the effectiveness of directly estimating ABP waveform and achieving blood pressure indicators within acceptable error ranges according to standards.
Blood pressure (BP) monitoring has significant importance in the treatment of hypertension and different cardiovascular health diseases. As photoplethysmogram (PPG) signals can be recorded non-invasively, research has been highly conducted to measure BP using PPG recently. In this paper, we propose a U-net deep learning architecture that uses fingertip PPG signal as input to estimate arterial BP (ABP) waveform non-invasively. From this waveform, we have also measured systolic BP (SBP), diastolic BP (DBP), and mean arterial pressure (MAP). The proposed method was evaluated on a subset of 100 subjects from two publicly available databases: MIMIC and MIMIC-III. The predicted ABP waveforms correlated highly with the reference waveforms and we have obtained an average Pearson's correlation coefficient of 0.993. The mean absolute error is 3.68 +/- 4.42 mmHg for SBP, 1.97 +/- 2.92 mmHg for DBP, and 2.17 +/- 3.06 mmHg for MAP which satisfy the requirements of the Association for the Advancement of Medical Instrumentation (AAMI) standard and obtain grade A according to the British Hypertension Society (BHS) standard. The results show that the proposed method is an efficient process to estimate ABP waveform directly using fingertip PPG.
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