Photoplethysmography-based continuous systolic blood pressure estimation method for low processing power wearable devices
| Autor: | Audrone Janaviciute, Rolandas Girčys, Gyte Damuleviciene, Egidijus Kazanavičius, Agnius Liutkevicius, Vita Lesauskaite |
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| Přispěvatelé: | MDPI AG (Basel, Switzerland) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Pulse Wave Analysis
Computer science pulse oximeter blood pressure determination| methods wearable device 02 engineering and technology Signal edge pulse wave lcsh:Technology 01 natural sciences Standard deviation lcsh:Chemistry 616.1 [udc] Photoplethysmogram 0202 electrical engineering electronic engineering information engineering Pulse wave pulse wave analysis General Materials Science lcsh:QH301-705.5 Instrumentation Blood pressure determination methods Photoplethysmography Pulse wave analysis Fluid Flow and Transfer Processes lcsh:T Pulse (signal processing) Process Chemistry and Technology 010401 analytical chemistry Continuous monitoring photoplethysmogram General Engineering 020206 networking & telecommunications blood pressure estimation lcsh:QC1-999 0104 chemical sciences Computer Science Applications Blood pressure lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 photoplethysmography lcsh:Engineering (General). Civil engineering (General) lcsh:Physics Biomedical engineering |
| Zdroj: | Applied Sciences Volume 9 Issue 11 Applied Sciences, Basel : MDPI AG, 2019, vol. 9, iss. 11, art. no. 2236, p. 1-16 Applied Sciences, Vol 9, Iss 11, p 2236 (2019) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app9112236 |
| Popis: | Regardless of age, it is always important to detect deviations in long-term blood pressure from normal levels. Continuous monitoring of blood pressure throughout the day is even more important for elderly people with cardiovascular diseases or a high risk of stroke. The traditional cuff-based method for blood pressure measurements is not suitable for continuous real-time applications and is very uncomfortable. To address this problem, continuous blood pressure measurement methods based on photoplethysmogram (PPG) have been developed. However, these methods use specialized high-performance hardware and sensors, which are not available for common users. This paper proposes the continuous systolic blood pressure (SBP) estimation method based on PPG pulse wave steepness for low processing power wearable devices and evaluates its suitability using the commercially available CMS50FW Pulse Oximeter. The SBP estimation is done based on the PPG pulse wave steepness (rising edge angle) because it is highly correlated with systolic blood pressure. The SBP estimation based on this single feature allows us to significantly reduce the amount of data processed and avoid errors, due to PPG pulse wave amplitude changes resulting from physiological or external factors. The experimental evaluation shows that the proposed SBP estimation method allows the use of off-the-shelf wearable PPG measurement devices with a low sampling rate (up to 60 Hz) and low resolution (up to 8-bit) for precise SBP measurements (mean difference MD = &minus 0.043 and standard deviation SD = 6.79). In contrast, the known methods for continuous SBP estimation are based on equipment with a much higher sampling rate and better resolution characteristics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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