Local PWV and other hemodynamic parameters assessment: Validation of a new optical technique in an healthy population

• Type: Article in International Conference Proceedings Book
• Date: 2013

Authors

Pereira, T (Author) Other; Santos, I (Author) Other; Oliveira, T (Author) Other; Vaz, P (Author) Other; Pereira, T (Author) Other; Santos, H (Author) Other; Pereira, H (Author) Other; Almeida, V (Author) Other; Cardoso, J (Author) Other; Correia, C (Author) FCUP

Conference proceedings International

Title: BIOSIGNALS 2013 - Proceedings of the International Conference on Bio-Inspired Systems and Signal Processing

Pages: 61-69

International Conference on Bio-Inspired Systems and Signal Processing, BIOSIGNALS 2013

Barcelona, 11 February 2013 through 14 February 2013

Indexing

Scopus - 5 Citations

Other information

Authenticus ID: P-008-B2C

Abstract (EN): Presently the interest in non-invasive devices for monitoring the cardiovascular system has increased in importance, especially in the diagnosis of some pathologies. The proposed optical device reveals an attractive instrumental solution for local pulse wave velocity (PWV) assessment and other hemodynamic parameters analysis, such as Augmentation Index (AIx), Subendocardial Viability Ratio (SEVR), Maximum Rate of Pressure Change (dP/dtmax) and Ejection Time Index (ETI). These parameters allow a better knowledge on the cardiovascular condition and management of many disease states. Two studies were performed in order to validate this technology. Firstly, a comparative test between the optical system and a gold-standard in PWV assessment was carried out. Afterwards, a large study was performed in 131 young subjects to establish carotid PWV reference values as well as other hemodynamic parameters and to find correlations between these and the population characteristics. The results allowed the use of this new technique as a reliable method to determine these parameters. For the total of subjects values for carotid PWV vary between 3-7.69 m s-1 a clear correlation with age and smoking status was found out. The Aix varies between -6.15% and 11.46% and exhibit a negative correlation with heart, and dP/dtmax parameter shows a significant decrease with age.

Language: English

Type (Professor's evaluation): Scientific