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- W2023007390 abstract "Objective To evaluate three methods aimed at the reconstruction of brachial pressure from non-invasive finger arterial pressure measurements as implemented in the Finometer™, (FMS, Finapres Measurement Systems, Arnhem, Netherlands), the successor to the Finapres™ (TNO Biomedical Instrumentation, Amsterdam, Netherlands). Methods Finger arterial pressure (FinAP) may differ from intra-brachial pressure (BAP). Pulse shape differences are removed by applying a generalized waveform filter. Pressure level differences are corrected by a generalized level correction equation using filtered systolic and diastolic levels and by level calibration, which uses an additional return-to-flow (RTF) systolic pressure measurement on the ipsilateral upper arm for an individual calibration of the reconstructed brachial pressure. Validation These methods were validated in 37 subjects, aged 41 to 83 years after a cardiac catheterization procedure. Intra-brachial and Finometer pressures were recorded simultaneously. Finometer pressures were compared after application of waveform filtering and level correction (flcAP), and after an additional RTF calibration (reBAP). Results Finger arterial systolic, diastolic and mean pressures for the group differed from BAP by −9.7 ± 13.0, −11.6 ± 8.0 and −16.3 ± 7.9 mmHg (mean ± SD) respectively. Similarly flcAP differed by −1.1 ± 10.7, −0.2 ± 6.8 and −1.5 ± 6.6 mmHg and reBAP differed by 3.1 ± 7.6, 4.0 ± 5.6 and 2.7 ± 4.7 mmHg. Conclusion Reconstruction of BAP from FinAP as implemented in the Finometer reduces the pressure differences, with an individual RTF calibration to well within AAMI requirements." @default.
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- W2023007390 date "2003-02-01" @default.
- W2023007390 modified "2023-09-30" @default.
- W2023007390 title "Finometer, finger pressure measurements with the possibility to reconstruct brachial pressure" @default.
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- W2023007390 doi "https://doi.org/10.1097/00126097-200302000-00006" @default.
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