| Abstract | OBJECTIVE: To image the synchronization of different parts of the uterus in relation to the abdominal surface during uterine contractions using uterine electromyogram topography. METHODS: Of the 20 participants, 16 were in active labor at term, 1 was in preterm labor, and 3 were experiencing failed induced labor. The signals simultaneously collected by 16 digitized channels were in the frequency ranges of 0.2 to 0.45 Hz and 0.8 to 3 Hz. Relative energies were calculated for these 2 frequency ranges and imaged by means of interpolation and transformation. RESULTS: Uterine topographic imaging during active labor suggested good synchronization in all participants, except in one of the 3 who were experiencing failed induced labor. Most notably, synchronization was as good in preterm labor as it was in labor at term. CONCLUSION: Uterine electromyogram topography provided good imaging of the synchronization of uterine contractions, and could be used for further research on uterine contractility during term and preterm labor. |
| Authors | Wei Jiang, Gang Li, Ling Lin
(Affiliation: College of Precision Instruments and Opto-electronic Engineering, Tianjin University, China. jiangw.bme at gmail.com)
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| Journal | International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
(Int J Gynaecol Obstet)
Vol. 97
Issue 2
Pg. 120-4
(May 2007)
ISSN: 0020-7292 Ireland |
| PMID | 17379224
(Publication Type: Clinical Trial, Journal Article)
|
| Topics |
- Adult
- Automatic Data Processing
- Electromyography
(instrumentation, methods)
- Electrophysiology
(instrumentation, methods)
- Female
- Humans
- Labor, Obstetric
(physiology)
- Obstetric Labor, Premature
- Pregnancy
- Uterine Contraction
(physiology)
|
