Non-invasive method for the aortic blood pressure waveform estimation using the measured radial EBI
| Autor: | Hasso Uuetoa, Tiina Uuetoa, Paul Annus, Andrei Krivoshei, Mart Min, Jurgen Lamp |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Coronary angiography
History Correlation coefficient Non invasive Spectral domain 030204 cardiovascular system & hematology 01 natural sciences 3. Good health Computer Science Applications Education 010309 optics 03 medical and health sciences 0302 clinical medicine Blood pressure 0103 physical sciences System parameters Aortic pressure Waveform Biomedical engineering Mathematics |
| Zdroj: | Journal of Physics: Conference Series |
| ISSN: | 1742-6596 1742-6588 0967-3334 |
| DOI: | 10.1088/1742-6596/434/1/012048 |
| Popis: | The paper presents a method for the Central Aortic Pressure (CAP) waveform estimation from the measured radial Electrical Bio-Impedance (EBI). The method proposed here is a non-invasive and health-safe approach to estimate the cardiovascular system parameters, such as the Augmentation Index (AI). Reconstruction of the CAP curve from the EBI data is provided by spectral domain transfer functions (TF), found on the bases of data analysis. Clinical experiments were carried out on 30 patients in the Center of Cardiology of East-Tallinn Central Hospital during coronary angiography on patients in age of 43 to 80 years. The quality and reliability of the method was tested by comparing the evaluated augmentation indices obtained from the invasively measured CAP data and from the reconstructed curve. The correlation coefficient r = 0.89 was calculated in the range of AICAP values from 5 to 28. Comparing to the traditional tonometry based method, the developed one is more convenient to use and it allows long-term monitoring of the AI, what is not possible with tonometry probes. |
| Databáze: | OpenAIRE |
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