About: Stability of Variability Features Computed from Fetal Heart Rate with Artificially Infused Missing Data

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Fetal heart rate (FHR) is usually the only measurement acquired directly from the fetus during delivery; therefore, any distortion leading to a corrupted signal means difficulties for fetal surveillance. Obstetricians use morphological features for evaluation of FHR that are usually estimated visually. Other type of features are those that are either difficult to estimate visually or can not be estimated by naked eye at all. In this paper we examined several STV (short), LTV (long term variability) features and one nonlinear feature.We compared features for an undistorted and distorted signal with missing samples. We analyzed feature's stability with respect to acquisition technique (ultrasound measurement, direct ECG measurement). The stability of STV indicies were almost identical except standard STV, De Haan index, and Yeh index. These indices changed markedly with increasing percentage of missing samples; Yeh index decreased up to 70% of its nominal value and De Haan index increased up to 350%; this behavior held for FHR recorded using ultrasound measurement and even for FHR directly computed from fetal ECG. This relationship was present for beat-to-beat variability and disappeared for epoch-to-epoch variability. Fetal heart rate (FHR) is usually the only measurement acquired directly from the fetus during delivery; therefore, any distortion leading to a corrupted signal means difficulties for fetal surveillance. Obstetricians use morphological features for evaluation of FHR that are usually estimated visually. Other type of features are those that are either difficult to estimate visually or can not be estimated by naked eye at all. In this paper we examined several STV (short), LTV (long term variability) features and one nonlinear feature.We compared features for an undistorted and distorted signal with missing samples. We analyzed feature's stability with respect to acquisition technique (ultrasound measurement, direct ECG measurement). The stability of STV indicies were almost identical except standard STV, De Haan index, and Yeh index. These indices changed markedly with increasing percentage of missing samples; Yeh index decreased up to 70% of its nominal value and De Haan index increased up to 350%; this behavior held for FHR recorded using ultrasound measurement and even for FHR directly computed from fetal ECG. This relationship was present for beat-to-beat variability and disappeared for epoch-to-epoch variability. (en)
Title	Stability of Variability Features Computed from Fetal Heart Rate with Artificially Infused Missing Data Stability of Variability Features Computed from Fetal Heart Rate with Artificially Infused Missing Data (en)
skos:prefLabel	Stability of Variability Features Computed from Fetal Heart Rate with Artificially Infused Missing Data Stability of Variability Features Computed from Fetal Heart Rate with Artificially Infused Missing Data (en)
skos:notation	RIV/68407700:21230/12:00194921!RIV13-MSM-21230___
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(NT11124), S
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Huptych, Michal Burša, Miroslav Spilka, Jiří Chudáček, Václav Lhotská, Lenka
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	170829
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/12:00194921
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Fetal Heart Rate; CTG; Short Term Variability (en)
http://linked.open.../riv/klicoveSlovo	Fetal Heart Rate Short Term Variability CTG
http://linked.open...ontrolniKodProRIV	[A65465E193AA]
http://linked.open...v/mistoKonaniAkce	Krakow
http://linked.open...i/riv/mistoVydani	New York
http://linked.open...i/riv/nazevZdroje	Computing in Cardiology 2012
http://linked.open...in/vavai/riv/obor	JC
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Impact of Cardiotocography evaluation by means of artificial inteligence on perinatal care
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Burša, Miroslav Chudáček, Václav Huptych, Michal Janků, P. Lhotská, Lenka Spilka, Jiří Zach, Lukáš Hruban, L.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-09-09 (xsd:date)
issn	2325-8861
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	IEEE
https://schema.org/isbn	978-1-4673-2074-0
http://localhost/t...ganizacniJednotka	21230

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