Computerized analysis of fetal heart rate variability using the matching pursuit technique as an indicator of fetal hypoxia during labor

Salamalekis, E; Hintipas, E; Salloum, I; Vasios, G; Loghis, C; Vitoratos, N; Chrelias, Ch; Creatsas, G

dc.contributor.author	Salamalekis, E	en
dc.contributor.author	Hintipas, E	en
dc.contributor.author	Salloum, I	en
dc.contributor.author	Vasios, G	en
dc.contributor.author	Loghis, C	en
dc.contributor.author	Vitoratos, N	en
dc.contributor.author	Chrelias, Ch	en
dc.contributor.author	Creatsas, G	en
dc.date.accessioned	2014-03-01T01:23:44Z
dc.date.available	2014-03-01T01:23:44Z
dc.date.issued	2006	en
dc.identifier.issn	1476-7058	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17119
dc.subject	Fetal heart rate variability	en
dc.subject	Fetal hypoxia	en
dc.subject	Matching pursuits	en
dc.subject.classification	Obstetrics & Gynecology	en
dc.subject.other	adult	en
dc.subject.other	analytic method	en
dc.subject.other	analytical parameters	en
dc.subject.other	Apgar score	en
dc.subject.other	arterial pH	en
dc.subject.other	article	en
dc.subject.other	cardiotocography	en
dc.subject.other	clinical article	en
dc.subject.other	computer analysis	en
dc.subject.other	controlled study	en
dc.subject.other	female	en
dc.subject.other	fetus	en
dc.subject.other	fetus heart rate	en
dc.subject.other	fetus hypoxia	en
dc.subject.other	fetus monitoring	en
dc.subject.other	frequency analysis	en
dc.subject.other	heart rate variability	en
dc.subject.other	human	en
dc.subject.other	labor	en
dc.subject.other	low low frequency parameter	en
dc.subject.other	matching pursuit technique	en
dc.subject.other	priority journal	en
dc.subject.other	umbilical artery	en
dc.subject.other	very low frequency parameter	en
dc.subject.other	wellbeing	en
dc.subject.other	Apgar Score	en
dc.subject.other	Cardiotocography	en
dc.subject.other	Case-Control Studies	en
dc.subject.other	Female	en
dc.subject.other	Fetal Blood	en
dc.subject.other	Fetal Distress	en
dc.subject.other	Fetal Hypoxia	en
dc.subject.other	Fetal Monitoring	en
dc.subject.other	Heart Rate, Fetal	en
dc.subject.other	Humans	en
dc.subject.other	Hydrogen-Ion Concentration	en
dc.subject.other	Infant, Newborn	en
dc.subject.other	Labor, Obstetric	en
dc.subject.other	Monitoring, Physiologic	en
dc.subject.other	Pregnancy	en
dc.subject.other	Sensitivity and Specificity	en
dc.subject.other	Signal Processing, Computer-Assisted	en
dc.title	Computerized analysis of fetal heart rate variability using the matching pursuit technique as an indicator of fetal hypoxia during labor	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/14767050500233290	en
heal.identifier.secondary	http://dx.doi.org/10.1080/14767050500233290	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	Objective. To determine whether the computerized analysis of fetal heart rate variability with the new matching pursuit technique can indicate fetal distress during labor. Study design. Eighty women were studied during the intrapartum period with external cardiotocography. In all cases, cord arterial pH and 5-min Apgar Scores were evaluated. Six cases that presented large segments of missing data were excluded from the study. The remaining 74 women were divided into two groups; 32 women with normal (Group A) and 42 women with non-reassuring FHR tracings (group B). Group B was divided in subgroup BI, including 24 women with pH > 7.20, and BII, including 18 women with pH < 7.20. In order to evaluate the FHR fluctuations, in different frequency ranges, we applied an adaptive time-frequency method, called Matching Pursuit. We estimated the power of the FHR signal in four frequency ranges. Results. The 5-min Apgar Scores were significantly lower in both subgroup BI and subgroup BII (p = 0.003 and p = 0.003 respectively). The Low Low Frequency (LLF) parameter appears to recognize better the cases with lower pH (sensitivity 78.5%, specificity 52.3%) than the cases with non-reassuring FHR (66.6%, 56.2). The sensitivity and specificity of the Very Low Frequency (VLF) parameter were 72.2% and 59% respectively in recognizing the cases with lower pH and 64.2% and 53.1% in recognizing non-reassuring FHR. Conclusion. Fetal hypoxia during labor can be recognized using the MP technique for the analysis of FHR signal power in the VLF and LLF frequency ranges. Since the analysis is feasible in real-time, it can be a useful tool for the intrapartum evaluation of fetal well-being. © 2006 Taylor & Francis.	en
heal.publisher	TAYLOR & FRANCIS LTD	en
heal.journalName	Journal of Maternal-Fetal and Neonatal Medicine	en
dc.identifier.doi	10.1080/14767050500233290	en
dc.identifier.isi	ISI:000238411800007	en
dc.identifier.volume	19	en
dc.identifier.issue	3	en
dc.identifier.spage	165	en
dc.identifier.epage	169	en