生物医学工程研究Issue(4)：221-225,5.
基于脉搏波传导时间的连续血压监测系统
Continuous Blood Pressure Measurement based on Pulse Transit Time
摘要
Abstract
To achieve continuous non-invasive blood pressure measurement,a method based on pulse transit time (PTT)was presented.We got PTT from electrocardiograph(ECG)and photoplethysmograph(PPG).The start point of PTT on ECG-R wave point and the stop point of PTT on PPG characteristic point was gotten.The mathematical model of systolic blood pressure (SBP)and dias-tolic blood pressure (DBP)were gotten by making regression analysis between PTT and SBP or DBP measured with a mercury sphyg-momanometer.Forty-one healthy young people were studied using this method.The correlation coefficients of SBP and DBP between our system and the mercury sphygmomanometer were 0.82 and 0.73,respectively.It was found that the estimated SBP and DBP dif-fered from the reference BP by 0.15 ±2.05 mmHg and 0.12 ±2.16 mmHg,respectively.The Bland-Altman method was used to check the consistency of the blood pressure measured by our system and the mercury sphygmomanometer.The results show that blood pressure measured by this method is good agreed with which measured by mercury sphygmomanometer.关键词
血压/连续监测/脉搏波传导时间/光电脉搏波/心电信号Key words
Blood pressure/Continuous measurement/Pulse transit time/Photoplethysmograph/Electrocardiogram分类
医药卫生引用本文复制引用
白丽红,王成,文苗,张通..基于脉搏波传导时间的连续血压监测系统[J].生物医学工程研究,2014,(4):221-225,5.基金项目
教育部博士点基金资助项目（20123120120012）。 （）
