Figure 9
From: Assessment of pulse rate variability by the method of pulse frequency demodulation
Agreement of spectral components of pulse rate variability (PRV) and heart rate variability (HRV). The amplitudes of spectral components were calculated for sequential 5-min segments over the entire length of data in a representative subject. Left panels: trendgram (panels A and B), scatter plot (panel C) and the Bland and Altman plot (panel D) for the amplitudes of low-frequency components of pulse interval variability (LFPRV) and R-R interval (LFHRV). Right panels: trendgram, scatter plot and the Bland and Altman plot of the amplitudes of high-frequency components of pulse interval variability (HFPRV) and R-R interval (HFHRV). ICC = intraclass correlation coefficient. Broken lines in the Bland and Altman plots represent the upper and lower limits of agreement (+2 SD and -2 SD, respectively). SD = standard deviation.