- ARTERY 18 Poster Session
- Poster session I - Models, methodologies and imaging technology I
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P48 Comparison Between Invasive and Non-Invasive Methods: To Evaluate Aortic Stiffness by Pulse Wave Velocity
Artery Research volume 24, page 92 (2018)
Abstract
Objective
To investigate if invasively measured aortic pulse wave velocity (PWV) is accurately estimated by non-invasive methods purporting to assess it. Methods: One-hundred and two patients (30% female, age 65 ± 13 years) planned to undertake coronary angiography were evaluated with the following non-invasive devices: BPLab (Petr Telegin, Russia), Complior Analyse (Alam Medical, France), Mobil-O-Graph (IEM, Germany), pOpmètre (Axelife, France), PulsePen-ET, PulsePen-ETT (Diatecne, Italy) and SphygmoCor (AtCor, Australia). Aortic PWV was measured by aortic catheterization and simultaneous measurement of pressure waves above the aortic valve and at the aortic bifurcation (FS-Stiffcath, Flag Vascular, Italy).
Results
The devices evaluating carotid-femoral PWV showed a very strong agreement between each other (r2 > 0.65) and with invasive aortic PWV (mean difference ± SDwith invasive PWV: −0.73 ± 2.83 m/s (r2 = 0.41) for Complior-Analyse; 0.20 ± 2.54 m/s (r2 = 0.51) for PulsePen-ETT; −0.04 ± 2.33 m/s (r2 = 0.61) for PulsePen-ET; −0.61 ± 2.57m/s (r2 = 0.49) for SphygmoCor). The finger-toe PWV, evaluated by the pOpmètre, and the PWV measured by BPLab showed a weak relationship with invasive PWV (respectively r 2 = 0.12, 0.05), with carotid-femoral PWV measurements (r 2 = 0.11, 0.010) and with age (r 2 = 0.10, 0.06). PWV estimated with Mobil-O-Graph through a proprietary algorithm showed a good agreement with invasive PWV (mean difference ± SD = −1.01 ± 2.54 m/s; r2 = 0.51) and appeared to be strictly dependent on age-squared and peripheral systolic blood pressure (r2 > 0.99).
Conclusions
Methods estimating carotid-femoral PWV should be considered the only non-invasive approach to reliably assess aortic stiffness. Aortic PWV values estimated by Mobil-O-Graph algorithm are also significantly related to invasive PWV, but do not offer any additional information on top of what provided by age and systolic blood pressure levels.
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This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
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Grillo, A., Moretti, F., Scalise, F. et al. P48 Comparison Between Invasive and Non-Invasive Methods: To Evaluate Aortic Stiffness by Pulse Wave Velocity. Artery Res 24, 92 (2018). https://doi.org/10.1016/j.artres.2018.10.101
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DOI: https://doi.org/10.1016/j.artres.2018.10.101