Abstract：
:The feasibility of a novel system to reliably estimate the normalized central blood pressure (CBPN) from the radial photoplethysmogram (PPG) is investigated. Right-wrist radial blood pressure and left-wrist PPG were simultaneously recorded in five different days. An industry-standard applanation tonometer was employed for recording radial blood pressure. The CBP waveform was amplitude-normalized to determine CBPN. A total of fifteen second-order autoregressive models with exogenous input were investigated using system identification techniques. Among these 15 models, the model producing the lowest coefficient of variation (CV) of the fitness during the five days was selected as the reference model. Results show that the proposed model is able to faithfully reproduce CBPN (mean fitness = 85.2% ± 2.5%) from the radial PPG for all 15 segments during the five recording days. The low CV value of 3.35% suggests a stable model valid for different recording days.
journal_name
J Healthc Engjournal_title
Journal of healthcare engineeringauthors
Zahedi E,Sohani V,Ali MA,Chellappan K,Beng GKdoi
10.1260/2040-2295.6.1.121subject
Has Abstractpub_date
2015-01-01 00:00:00pages
121-44issue
1eissn
2040-2295issn
2040-2309pii
4T076264M4134410journal_volume
6pub_type
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