A Probabilistic Beat-To-Beat Filtering Model For Continuous And Accurate Blood Pressure Estimation

2020 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS (IJCNN)(2020)

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摘要
Cuffless technologies provide a convenient platform for remote and continuous blood pressure (BP) monitoring, however, signal recordings employed for cuffless BP estimation, which are based on the electrocardiogram (ECG) and photo-plethysmography (PPG) signals, are frequently corrupted with measurement noise and artefacts. Consequently, even a small portion of abnormal data samples can severely impact the overall signal quality and therefore lead to significantly distorted BP value estimates. To this end, a data-driven model is proposed to infer the beat-to-beat signal quality for the ECG, PPG and BP signal recordings, whereby high-quality and low-quality (outlier) beats are detected using a probabilistic model chosen according to the maximum entropy principle. Physiological rules are also imposed to guarantee that each filtered sample is physiologically meaningful. The advantages of the proposed filtering framework for both systolic blood pressure and diastolic blood pressure estimation are demonstrated through the analysis and estimation of 12;000 clinical BP recordings, consisting of over 200;000 test samples.
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关键词
Continuous Blood Pressure Estimation, Beat Quality Detection, Probabilistic Filtering Model, Systolic Blood Pressure, Diastolic Blood Pressure
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