title: Application of Method for Coherent Photodetection in Cardiovascular Diagnostics - Non-Invasive Monitoring of the Blood Pressure and the Viscoelastic Parameters of Arteries
reg no: ETF5888
project type: Estonian Science Foundation research grant
subject: 2.13. Biomedical Engineering
status: accepted
institution: TTU Faculty of Science
head of project: Kalju Meigas
duration: 01.01.2004 - 31.12.2007
description: The estimation of vascular viscoelastic parameters of human arterial system is essential part in nowadays cardiovascular diagnostics, especially the possibility to estimate such parameters quickly, non-invasively and in correlation with blood pressure. This gives a possibility to study the dynamics of such processes and the dependence from different physiological factors what makes possible to have better diagnose even before the clinical symptoms arise.

Main objective for planned project is investigation and design of new opportunities to use self-mixing as a great promise optical non-invasive method in using Doppler effect in actual directions of the cardiovascular diagnostics. The non-invasive monitoring of the viscoelastic properties of the arteries in correlation with global and local blood pressure, indicated by such parameters as the shape and the velocity of pulse wave with its dynamic changes in different physiological loads, makes possible to get information about the condition of the cardiovascular system as whole or in different parts of human body. Among the viscoelastic properties of the arteries, the most important parameter is Dynamic Compliance, which gives information about the condition of vascular system.

We declare, on the bases of our long experience, that presented optical coherent method gives us possibility to develop method and new effective and very fast device for cardiovascular diagnostics. This device makes possible to measure the blood pressure continuously and non-invasively and to get new information about the dynamics and the simultaneous changes of the arterial compliance.

project group
no name institution position  
1.Irina HlimonenkoTallinn Technical Universitymagistrant 
2.Kalju MeigasTTU Faculty of ScienceProf. 
3.Mait NigulTallinn Technical Universitypeainsener, doktorant 
4.Ingrid TepnerTallinn Technical Universitydoktorant