Title: Assessing left ventricular ejection time from wrist cuff pulse waveforms: Algorithm and evaluation
Authors: Jílek, Jiří
Štork, Milan
Citation: 2017 International Conference on Applied Electronics: Pilsen, 5th – 6th September 2017, Czech Republic, p.65-68.
Issue Date: 2017
Publisher: Západočeská univerzita v Plzni
Document type: konferenční příspěvek
URI: http://hdl.handle.net/11025/35410
ISBN: 978–80–261–0641–8 (Print)
978–80–261–0642–5 (Online)
ISSN: 1803–7232 (Print)
1805–9597 (Online)
Keywords: systolické časové intervaly;LVET;měření pulsu se zápěstním tlakoměrem;Bland-Altmanův diagram;zdvihový objem
Keywords in different language: systolic time intervals;left ventricular ejection time;wrist cuff pulse waveforms;Bland-Altman plot;stroke volume
Abstract in different language: Left ventricular ejection time (LVET) is an important component of systolic time intervals. It has been used as a surrogate for left ventricular contractility and stroke volume. We developed a method for the assessment of LVET from wrist cuff pulse waveforms. The waveforms are obtained from a partially inflated cuff held at the level of the heart. Each test involved acquisition of 10 second sample of waveform data. The data were processed after each test by specially developed software algorithm. Thirty tests were evaluated and compared with predicted values. The results showed the mean value of computed LVET equal to 309 ms and mean value of predicted LVET equal to 304 ms. We concluded that our method has the potential for use as a stand-alone method for evaluation of left ventricular contractility and for the determination of stroke volume.
Rights: © Západočeská univerzita v Plzni
Appears in Collections:Applied Electronics 2017
Applied Electronics 2017

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