The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
Assessment of heart rate variability derived from finger-tip photoplethysmography as compared to electrocardiography
Abstract
Heart rate variability (HRV) is traditionally derived from RR interval time series of electrocardiography (ECG). Photoplethysmography (PPG) also reflects the cardiac rhythm since the mechanical activity of the heart is coupled to its electrical activity. Thus, theoretically, PPG can be used for determining the interval between successive heartbeats and heart rate variability. However, the PPG wave lags behind the ECG signal by the time required for transmission of pulse wave. In this study, finger-tip PPG and standard lead II ECG were recorded for five minutes from 10 healthy subjects at rest. The results showed a high correlation (median = 0.97) between the ECG-derived RR intervals and PPG-derived peak-to-peak (PP) intervals. PP variability was accurate (0.1 ms) as compared to RR variability. The time domain, frequency domain and Poincaré plot HRV parameters computed using RR interval method and PP interval method showed no significant differences (p < 0.05). The error analysis also showed insignificant differences between the HRV indices obtained by the two methods. Bland-Altman analysis showed high degree of agreement between the two methods for all the parameters of HRV. Thus, HRV can also be reliably estimated from the PPG based PP interval method.
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Cites
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Cited by
How accurate is pulse rate variability as an estimate of heart rate variability?
Schäfer, A., & Vagedes, J. (2013) · International Journal of Cardiology · doi:10.1016/j.ijcard.2012.03.119 · Cited by 661
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Can Wearable Devices Accurately Measure Heart Rate Variability? A Systematic Review
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HeartPy: A novel heart rate algorithm for the analysis of noisy signals
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Metadata
- Authors
- Selvaraj, N., Jaryal, A., Santhosh, J., Deepak, K. K., & Anand, S.
- Venue
- Journal of Medical Engineering & Technology
- Publisher
- Informa UK Limited
- Published
- 2008-01
- Volume
- 32
- Issue
- 6
- Pages
- 479-484
- ISSN
- 0309-1902 (ISSN-L)
- 1464-522X
- OpenAlex
- W2037549735
- Cited by
- 342
- References
- 18
- FWCI
- 4.26
- Type
- journal article
- Language
- en
- Open access
- closed
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- Selvaraj, N., Jaryal, A., Santhosh, J., Deepak, K. K., & Anand, S. (2008). Assessment of heart rate variability derived from finger-tip photoplethysmography as compared to electrocardiography. Journal of Medical Engineering & Technology. https://doi.org/10.1080/03091900701781317
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