Decrement of uterine myometrial burst duration as a correlate to active labor: A Hilbert phase approach
- Resource Type
- Conference
- Authors
- Govindan, Rathinaswamy B.; Vairavan, Srinivasan; Furdea, Adrian; Murphy, Pam; Preissl, Hubert; Eswaran, Hari
- Source
- 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE. :4618-4621 Aug, 2010
- Subject
- Bioengineering
Signal Processing and Analysis
Robotics and Control Systems
Communication, Networking and Broadcast Technologies
Computing and Processing
Sensors
Muscles
Signal to noise ratio
Junctions
Electric potential
Pregnancy
Electromyography
- Language
- ISSN
- 1094-687X
1558-4615
We propose a novel approach based on Hilbert phase to identify the burst in the uterine myometrial activity. We apply this approach to 24 serial magnetomyographic signals recorded from four pregnant women using a 151 SQUID array system. The bursts identified with this approach are evaluated for duration and are correlated with the gestational age. In all four subjects, we find a decrease in the duration of burst as the subject approaches active labor. As was shown in animal studies, this result indicates a faster conduction time between the muscle cells which activate a larger number of muscle units in a synchronous manner.