M.A. Yangirov1, M.B. Al-Harosh2, S.I. Shchukin3

1–3 Bauman Moscow State Technical University (Moscow, Russia)
1yangirovma@student.bmstu.ru, 2mujeebbajjash@mail.ru, 3schookin@bmstu.ru

The aim of this study is to propose a method for bio-impedance based system, which can provide real time monitoring of arterial stiffness. Study was conducted using local bio-impedance measurement by surface-attached electrode system was used to provide real time and continuous assessment of arterial stiffness. Thus, the lnDU-loop technique necessitates concurrent evaluation of both the diameter waveform and blood flow velocity profiles in superficial arteries. The arterial diameter waveform was assessed by inverse solution of bio-impedance forward problem. Therefore, the ECG gated blood flow velocity and bio-impedance signal obtained from single point were used to plot their relationship to assess the local PWV hence the corresponding arterial stiffness. Results: The presented algorithm has shown its ability to detect arterial dimensions and local pulse wave velocity on a beat-to-beat basis simultaneously. Its potential for estimating arterial stiffness was validated in four test subjects. Conclusion: assessment of arterial stiffness is important for understanding the pathophysiology of cardiovascular diseases. Conducting this assessment non-invasively and on a long-term basis provides significant advantages for diagnosis.

Yangirov M.A., Al-Harosh M., Shchukin S.I. System for continuous monitoring of arterial stiffness based on local assessment of pulse wave velocity. Biomedicine Radioengineering. 2025. V. 28. № 5. P. 173–179. DOI: https:// doi.org/10.18127/ j15604136-202505-34 (In Russian)

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