Název:	Assessing left ventricular ejection time from wrist cuff pulse waveforms: Algorithm and evaluation
Autoři:	Jílek, Jiří Štork, Milan
Citace zdrojového dokumentu:	2017 International Conference on Applied Electronics: Pilsen, 5th – 6th September 2017, Czech Republic, p.65-68.
Datum vydání:	2017
Nakladatel:	Západočeská univerzita v Plzni
Typ dokumentu:	konferenční příspěvek conferenceObject
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)
Klíčová slova:	systolické časové intervaly;LVET;měření pulsu se zápěstním tlakoměrem;Bland-Altmanův diagram;zdvihový objem
Klíčová slova v dalším jazyce:	systolic time intervals;left ventricular ejection time;wrist cuff pulse waveforms;Bland-Altman plot;stroke volume
Abstrakt v dalším jazyce:	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.
Práva:	© Západočeská univerzita v Plzni
Vyskytuje se v kolekcích:	Applied Electronics 2017 Applied Electronics 2017

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