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Pulse Transit Time and Pulse Width as Potential Measure for Estimating Beat-to-Beat Systolic and Diastolic Blood Pressure

文献类型： 会议论文

第一作者： Adriana Arza

作者： Adriana Arza 1 ; Jesús Lázaro 2 ; Eduardo Gil 2 ; Pablo Laguna 2 ; Jordi Aguiló 1 ; Raquel Bailon 2 ;

作者机构： 1.Microelectronics and Electronic Systems Department, Autonomous University of Barcelona, Spain

2.CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain

关键词： PTT;DBP;ECG

会议名称： Computing in Cardiology Conference

主办单位：

页码： 887-890

摘要： Two cardiovascular parameters of emerging interest suitable for estimation of non-invasive, beat-to-beat, and without cuff blood pressure parameters are pulse width (PW) and pulse transit time (PTT). In this study the performance of both parameters in estimating beat-to-beat systolic blood pressure (SBP) and diastolic blood pressure (DBP) is analyzed. The overall data set used in the study includes synchronous electrocardiogram signal (ECG), pulse photoplethysmography signal (PPG) and continuous blood pressure signal of 16 healthy subjects during tilt table test, which provokes significant changes in SBP and DBP due to postural changes. Blood pressure was estimated using a linear model and its coefficients were calculated for each subject by linear regression using only the data of 5 beats. Results suggest that each of these two parameters can be used to estimate blood pressure, PWis better than PTT to detect pressure variations due to postural change, but together they are a potential measure for estimating beat-to-beat systolic and diastolic blood pressure. Mean estimation error and correlation between estimated and recorded series were 2,72±9,202mmHg (2,09±8，22%）,r=0,509 for SBP and 2,16±5,994mmHg (4,07±10，47%），r=0,504 for DBP, respectively.

分类号： TP399-53

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