Comparison of heart rate variability measurements between ballistocardiogram and electrocardiography

VernacularTitle:心冲击图和心电图进行心率变异性分析的比较
Author: Kun WANG ¹ ; Tiangang ZHU ; Xianwen ZHANG ; Chao YU ; Xinrong CAO ; Jintian TANG ; Zheng WAN
Author Information

1. 清华大学第二附属医院内科
Keywords: Electrocardiography; Ballistocardiogram; Heart rate
From: Chinese Journal of Cardiology 2015;43(5):448-451
CountryChina
Language:Chinese
Abstract: Objective To compare the heart rate variability (HRV)measurements between ballistocardiogram (BCG) and electrocardiography (ECG).Methods The signals of BCG and ECG of 21 patients were collected synchronously.JJ intervals of BCG and RR intervals of ECG were used to calculate the cardiac periods.The parameters of HRV analysis were calculated in time domain analysis,frequency domain analysis and nonlinear analysis.The results derived from BCG and ECG were compared.Results The parameters of HRV analysis calculated from BCG and ECG had high similarity.The correlation coefficients of SDNN,TP,LF,HF and SD2 between the BCG and ECG methods were high (r =1).The correlation coefficients of rMSSD and SD2 were 0.99 and of PNN50 and LF/HF were 0.98 between the two methods.HRV analysis results derived from the two methods were similar (P ＞ 0.05).Conclusion HRV could also be measured reliably by calculating the JJ interval from BCG.