CAJ | 학술논문

采集46名健康成年人自主呼吸状态下的同步心电和光电容积脉搏波信号，从心电图中提取心跳间期，从光电容积脉搏波中提取脉搏间期，分别计算心率变异性。脉搏间期的提取采用了二阶差分极大值法、主波波峰法和切线法这三种不同的特征点识别算法。结果显示基于光电容积脉搏波的三种不同特征点识别算法获得的心率变异性结果与使用心电获得的心率变异性结果高度相关。Bland-Altman图显示主波波峰法的计算结果较其它两种方法的结果的相对偏倚值的标准差最小，一致性限外的奇异点最少。
채집46명건강성년인자주호흡상태하적동보심전화광전용적맥박파신호，종심전도중제취심도간기，종광전용적맥박파중제취맥박간기，분별계산심솔변이성。맥박간기적제취채용료이계차분겁대치법、주파파봉법화절선법저삼충불동적특정점식별산법。결과현시기우광전용적맥박파적삼충불동특정점식별산법획득적심솔변이성결과여사용심전획득적심솔변이성결과고도상관。Bland-Altman도현시주파파봉법적계산결과교기타량충방법적결과적상대편의치적표준차최소，일치성한외적기이점최소。
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 smal est and singular points that deviate from the consistent limits are the least compared with the other two algorithms.