Title
Arterial blood pressure feature estimation using photoplethysmography.
Abstract
Continuous and noninvasive monitoring of blood pressure has numerous clinical and fitness applications. Current methods of continuous measurement of blood pressure are either invasive and/or require expensive equipment. Therefore, we investigated a new method for the continuous estimation of two main features of blood pressure waveform: systolic and diastolic pressures. The estimates were obtained from a photoplethysmography signal as input to the fifth order autoregressive moving average models. The performance of the method was evaluated using beat-to-beat full-wave blood pressure measurements from 15 young subjects, with no known cardiovascular disorder, in supine position as they breathed normally and also while they performed a breath-hold maneuver. The level of error in the estimates, as measured by the root mean square of the model residuals, was less than 5 mmHg during normal breathing and less than 8 mmHg during the breath-hold maneuver. The mean of model residuals both during normal breathing and breath-hold maneuvers was considered to be less than 3.2 mmHg. The dependency of the accuracy of the estimates on the subject data was assessed by comparing the modeling errors for the 15 subjects. Less than 1% of the models showed significant differences (p < 0.05) from the other models, which indicates a high level of consistency among the models.
Year
DOI
Venue
2018
10.1016/j.compbiomed.2018.09.013
Computers in Biology and Medicine
Keywords
DocType
Volume
Autoregulation,Blood pressure,Estimation,Hemodynamics,Modeling,SaO2,Sleep disorders
Journal
102
ISSN
Citations 
PageRank 
0010-4825
3
0.44
References 
Authors
7
5
Name
Order
Citations
PageRank
Armin Soltan Zadi131.79
Raichel Alex242.20
R. Zhang3166.20
Donald E Watenpaugh433.15
Khosrow Behbehani5164.71