Towards the standardization of ballistocardiography systems for J-peak timing measurement |
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| Affiliation: | 1. Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, Hradec Kralove 50003, Czech Republic;2. Faculty of Information Technology, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Vietnam;3. DaSCI Andalusian Institute of Data Science and Computational Intelligence, University of Granada, Granada, Spain;4. Regional Research Center, Iwate Prefectural University, Iwate, Japan;1. HTWG Konstanz, Alfred-Wachtel-Str. 8, 78462 Konstanz, Germany;2. University of Seville, Avda. Reina Mercedes s/n, Seville, Spain;3. I.M. Sechenov First Moscow State Medical University, 2-4, Bolshaya Pirogovskaya st., 119435 Moscow, Russian Federation |
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| Abstract: | There is a growing interest in accurately measuring the timing of the J peak of the ballistocardiogram (BCG) in order to obtain cardiovascular function markers non-invasively, especially in modern home healthcare applications. In this paper we have studied the effect that some common uncertainty sources have in the time measurement of the J peak. This is a necessary step towards the standardization of modern ballistocardiography systems equivalent to that available for ECG systems. We conclude that, to reduce J peak time uncertainty below the measured intrinsic uncertainty of about ±2 ms, the minimal bandwidth should be from 1.5 Hz to 22.5 Hz; the sampling frequency can be decreased up to 50 Hz when using cubic spline interpolation; 5 bits are required to quantify the signal, and signal-to-noise ratio (SNR) and signal-to-interference ratio (SIR) should be over 40 dB and 3 dB respectively. |
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| Keywords: | Ballistocardiogram Acquisition system Biomedical instrumentation Standardization |
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