Title
Cuff-Less Blood Pressure Monitoring With A 3-Axis Accelerometer
Abstract
Objective: The aim was to propose a cuff-less, cost-efficient, and ultra-convenient blood pressure monitoring technique with a 3-axis accelerometer. Methods: The efficacy of the proposed approach was examined in 8 young healthy volunteers undergoing different activities with a 3-axis accelerometer leveled on their upper chest. The 3-dimensional accelerations were exploited to select features for the calculation of systolic pressure (SP) and diastolic pressure (DP); the whole process involved signal processing, feature extraction, linear multivariate regression, and leave-one-out cross validations (LOOCV). Results: DP and SP could be approximated with the linear combination of the extracted features: the L-2 norm of lateral acceleration for both DP and SP, state variation (defined in the proposed algorithm) of vertical acceleration for SP, and I-J interval (defined in ballistocardiogram) of vertical acceleration for DP. The correlation coefficient (r) of the estimated and the measured DP was 0.97, and for SP, r = 0.96. In LOOCV, our best validated results in difference errors were -0.02 +/- 3.82 mmHg for DP and -0.59 +/- 7.46 mmHg for SP. Conclusion: Compared to AAMI criteria, the proposed acceleration-based technique fulfilled the requirement. The accelerometer-based technique showed the potential to monitor blood pressure cufflessly, cost-efficiently, ultra-conveniently, and to be embedded in a long-term wearable device for clinical usage.
Year
DOI
Venue
2019
10.1109/EMBC.2019.8857864
2019 41ST ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)
Field
DocType
Volume
Biomedical engineering,Computer vision,Signal processing,Linear combination,Correlation coefficient,Computer science,Accelerometer,Multivariate statistics,Feature extraction,Acceleration,Artificial intelligence,Blood pressure
Conference
2019
ISSN
Citations 
PageRank 
1557-170X
0
0.34
References 
Authors
0
10
Name
Order
Citations
PageRank
Eric Chang100.34
Chung-Kuan Cheng22314285.85
Anushka Gupta300.34
Po-Han Hsu411.69
Po-Ya Hsu553.47
Hsin-Li Liu600.34
Amanda Moffitt700.34
Alissa Ren800.34
Irene Tsaur900.34
Samuel Wang1000.34