Improvement of Blood Pressure Measurement Based on ECG and PPG
XU Jiu-qian · Journal of Northeastern University · 2014
According to feature point detection algorithm with large computation of blood pressure measurement based on ECG and PPG,a feature point detection algorithm w as proposed based on an improved difference method. The efficiency of the improved algorithm and the accuracy of the feature point detection had been largely improved. Through correlation analysis and regression analysis of the sampling data,the SBP( systolic blood pressure) had a strong correlation w ith PWTT( pulse w ave transmit time),but DBP( diastolic blood pressure) had a moderate correlation w ith PWTT. The experimental results indicated that using the improved algorithm,the PWTT could be calculated accurately, and then the SBP could be obtained. Also the deviation requirement could be met to noninvasive blood pressure measurement of AAMI.