Avtor/Urednik		Leskošek, Branimir
Naslov		Digitalna analiza zapisov elektromiografske aktivnosti maternice med brejostjo in porodom pri ovci
Tip		monografija
Kraj izdaje		Ljubljana
Založnik		Fakulteta za elektrotehniko
Leto izdaje		1998
Obseg		str. 90
Jezik		slo
Abstrakt		The purpose of this work was to improve the method of data acquisition and processing of uterine EMG signals in ewes for routine tracking of course of gestation and labour. We wanted to establish and evaluate those parameters from temporal, frequency and time/frequency domains which would appropriately represent the EMG activity of smooth muscles of uterine horn (UH) and uterine cervix (UC) in ewes during gestation, labour and after labour. The aims of this work were to improve the method of data acquisition and processing of uterine EMG signals in ewes and to find typical parameters of uterine EMG activity in different periods during gestation, labour and after labour in temporal, frequency and time/frequency domains. Our working hypothesis was that those parameters of uterine EMG signals in ewes during gestation, labour and after labour are in relation with uterine state in those periods. To eight ewes which were pregnant about three months and were not dams for the first time, we have surgically implanted platinum bipolar electrodes (two pairs of active electrodes and one reference electrode) on the UH and UC. The EMG activity from UH and UC was acquired in circular direction twice per day during gestation, during the whole time of labour and a few times after it. Each recording session during gestation and after labour was about one hour, with the recording time during labour depending on its length (up to ten hours). EMG signals were fed to the differential EMG amplifying system with integrated active analogue lowpass filter (passband edge frequency fp=4,6Hz/3dB) and then acquired with personal computer with installed A/D converter (sampling frequency fs=20Hz). The measuring procedure was adjusted to routine measurements that were operated by a trained measurer. For the five ewes for which we had the most complete and quality measurements we performed data processing and analysis. (Abstract truncated at 2000 characters.)
Deskriptorji		UTERINE CONTRACTION ELECTROMYOGRAPHY PREGNANCY, ANIMAL LABOR SHEEP