Distance of foetal movement measured using the analytical signal derived from non-directional Doppler sound
Name:
Publisher version
View Source
Access full-text PDFOpen Access
View Source
Check access options
Check access options
Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Issue Date
1998-07-01
Metadata
Show full item recordCitation
Med Eng Phys. 1998, 20(5):325-31Abstract
Foetal heart rate (FHR) monitoring using the Doppler shift resulting from the movements of the foetal heart is a standard examination in most obstetrical wards. Other movements also give rise to a low frequency Doppler shift. These signals are incompletely understood. Their characteristics may offer a way for diagnostic exploitation through complementing or replacing time consuming ultrasound observation of foetal movements. It is shown that a wealth of information is contained in these signals which can easily be extracted on line by a standard PC computer using straightforward methods of signal processing. In its amplitude an ultrasonic Doppler signal contains information concerning the size of the reflector in movement and speed as frequency. The displacement of the reflector can also be derived from the phase evolution of a complex Doppler signal. Examples of signals generated by various types of foetal activity are shown and analyzed.Description
To access publisher full text version of this article. Please click on the hyperlink in Additional Links fieldAdditional Links
http://www.sciencedirect.com/science/article/B6T9K-3TX4KCH-2/2/77f11c7d07415cc91074417ae4f542f0ae974a485f413a2113503eed53cd6c53
10.1016/S1350-4533(98)00033-2
Scopus Count
Collections
Related articles
- The Actifetus system: a multidoppler sensor system for monitoring fetal movements.
- Authors: Kribèche A, Tranquart F, Kouame D, Pourcelot L
- Issue date: 2007 Mar
- Invention of ultrasonic Doppler fetal actocardiograph and continuous recording of fetal movements.
- Authors: Maeda K
- Issue date: 2016 Jan
- Effects of fetal and maternal breathing on the ultrasonic Doppler signal due to fetal heart movement.
- Authors: Karlsson B, Berson M, Helgason T, Geirsson RT, Pourcelot L
- Issue date: 2000 Mar
- Automatic detection of ultrasonic Doppler signal episodes resulting from fetal breathing movements.
- Authors: Kałuzyński K, Kret T, Sieńko J, Czajkowski K, Pałko T
- Issue date: 2008 May
- Data compression of fetal Doppler ultrasound audio signals using zero-crossings analysis.
- Authors: Taylor J, Paull CJ, Hayes-Gill BR, Crowe JA
- Issue date: 1997 Sep