Pulse wave velocity is an important parameter to describe the flexibility of cardiovascular system.How to obtain the accurate position of the feature points stably becomes a key issue in pulse wave velocity calculation.A new method is introduced to identify the most significant common ground—upstroke.The feature points can be calculated of peak and trough points from upstroke by interpolation algorithm.The experimental results show that the average error of the time difference between two pulse wave calculated by this method comparing to cross-point method is 0.078s, pulse wave velocity can be analyzed effectively and conveniently by using this algorithm.
; 张永杰
修改评论