Abstract
In this study we appraised the accuracy of the Finometer in spectral analysis of systolic (SAP) and diastolic (DAP) arterial pressure. In 24 patients the blood pressure signal was simultaneously recorded invasively and by the Finometer and the power of SAP and DAP in the VLF (0.01÷0.04Hz), LF (0.04÷0.15Hz), and HF (0.15÷0.45Hz) bands computed. To investigate the relationship between invasive and Finometer measurements, the percentage error was computed and bivariate spectral analysis performed. The error for SAP analysis, was (%): 139, 76, -32, 75 for respectively VLF, LF, HF and total power; DAP errors were much smaller. SAP variability is greatly enhanced by the Finometer, mainly due to the increase of power in the VLF and LF bands which overrides the reduction in the HF band. Noise and nonlinearities account for <20% of the Finometer power changes, indicating that the differences are mainly due to amplification or attenuation effects.
Original language | English |
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Title of host publication | Computers in Cardiology |
Editors | A. Murray |
Pages | 505-508 |
Number of pages | 4 |
Volume | 30 |
Publication status | Published - 2003 |
Event | Computers in Cardiology 2003 - Thessaloniki Chalkidiki, Greece Duration: Sep 21 2003 → Sep 24 2003 |
Other
Other | Computers in Cardiology 2003 |
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Country/Territory | Greece |
City | Thessaloniki Chalkidiki |
Period | 9/21/03 → 9/24/03 |
ASJC Scopus subject areas
- Software
- Cardiology and Cardiovascular Medicine