2018 Volume Annual56 Issue Abstract Pages S117
This report proposes a method to improve the vascular age estimation from the acceleration pulse waveform (APW). There are some cases where the expected peaks in the APW are not separated. These cases frequently happen for the young subjects aged 20-30. We have shown that the introduction of the third derivative of the original pulse wave enables to differentiate the missing APW peaks. The adaptive procedure of pulse wave selection is proposed to obtain the representative parameter values for the subject. The procedure adopts the correlation between parameter vector obtained from each beat with median parameter vector of the subject. Finally, principal component analysis of the derived indices is applied to determine the vascular age estimation coefficients. The proposed method is applied to 522 subjects aged from 3 to 87. For the subject age range between 20-60, the significant improvement for the vascular age estimation has been confirmed.
