Avtor/Urednik		Leskošek, Branimir
Naslov		Elektromiografija maternice med gravidnostjo pri človeku in ovci
Tip		monografija
Kraj izdaje		Ljubljana
Založnik		Medicinska fakulteta
Leto izdaje		2002
Obseg		str. 93
Jezik		slo
Abstrakt		General objectives: The activity of uterine corpus and cervix in pregnancy, at labour and postpartum is not known in all details yet. By comparing the electromyographic (EMG) activity of uterine smooth muscles in humans and ewes we wanted to gain new knowledge of how similar and how different the uterine EMG signals in humans and ewes are. Similarities are of special interest for us, because we want to find out if by observing the EMG activity in ewes we can conclude on EMG activity in humans during pregnancy and at labour and because not everything can be researched in humans. Immediate objectives: To compare EMG activity of uterine smooth muscles during pregnancy in humans and ewes. We wanted to find similarities and differences in four ways: by visual comparison of EMG signals in temporal, frequency and time-frequency space, by statistical comparison of characteristic values (root mean square - RMS and median frequency - MF) of EMG signals, by comparison of a parametric model of the uterine EMG activity in humans and ewes and by constructing a decision tree with machine learning which is one of artificial intelligence methods. Study groups and methods: In the research we included 65 normally pregnant women and 6 normally pregnant ewes. In both groups we differentially acquired the EMG activity in transversal direction: the activity of uterine corpus (UC) in humans and the activity of pregnant uterine horn (UH) in ewes. In women the EMG signals were recorded abdominally by surface electrodes and in ewes with implanted electrodes fixed on the UH. The sampling frequency was 20 Hz. In the study we used entire EMG recordings. In all included recordings the influence of artefacts and noise was reduced as much as possible. (Abstract truncated at 2000 characters).
Deskriptorji		PREGNANCY UTERINE CONTRACTION ELECTROMYOGRAPHY SHEEP IMAGE PROCESSING, COMPUTER-ASSISTED MULTIVARIATE ANALYSIS