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  • Title: [The Study of the Measurement of Heart Rate Variability Using ECG and Photoplethysmographic Signal].
    Author: Wang B, Chai X, Zhang Zhengbo, Wang W.
    Journal: Zhongguo Yi Liao Qi Xie Za Zhi; 2015 Jul; 39(4):249-52, 264. PubMed ID: 26665942.
    Abstract:
    In comparison with the measurement of heart rate variability from ECG and from photoplethysmographic signal from 46 healthy adults in their spontaneous breathing state. The beat-to-beat intervals in ECG and pulse-to-pulse intervals in photoplethysmographic signal are extracted, and then the parameters of heart rate variability are calculated. Three kinds of algorithms are chosen to get the pulse-to-pulse intervals, which are the intervals of maximum of second derivative, the maximum of PPG signal and the tangent intersection. The results show that the correlation coefficients of the HRV parameters in the two calculation methods are highly correlated. The Bland-Altman scattered plots show the relative bias results from the algorithm of the maximum of PPG signal are smallest and singular points that deviate from the consistent limits are the least compared with the other two algorithms.
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