Distance of foetal movement measured using the analytical signal derived from non-directional Doppler sound

2.50
Hdl Handle:
http://hdl.handle.net/2336/47879
Title:
Distance of foetal movement measured using the analytical signal derived from non-directional Doppler sound
Authors:
Karlsson, B; Pourcelot, D; Helgason, T; Pourcelot, L; Berson, M
Citation:
Med Eng Phys. 1998, 20(5):325-31
Issue Date:
1-Jul-1998
Abstract:
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 field
Additional Links:
http://www.sciencedirect.com/science/article/B6T9K-3TX4KCH-2/2/77f11c7d07415cc91074417ae4f542f0

Full metadata record

DC FieldValue Language
dc.contributor.authorKarlsson, B-
dc.contributor.authorPourcelot, D-
dc.contributor.authorHelgason, T-
dc.contributor.authorPourcelot, L-
dc.contributor.authorBerson, M-
dc.date.accessioned2009-01-22T15:20:30Z-
dc.date.available2009-01-22T15:20:30Z-
dc.date.issued1998-07-01-
dc.date.submitted2009-01-22-
dc.identifier.citationMed Eng Phys. 1998, 20(5):325-31en
dc.identifier.issn1350-4533-
dc.identifier.pmid9773685-
dc.identifier.doi10.1016/S1350-4533(98)00033-2-
dc.identifier.urihttp://hdl.handle.net/2336/47879-
dc.descriptionTo access publisher full text version of this article. Please click on the hyperlink in Additional Links fielden
dc.description.abstractFoetal 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.en
dc.language.isoenen
dc.publisherButterworth-Heinemannen
dc.relation.urlhttp://www.sciencedirect.com/science/article/B6T9K-3TX4KCH-2/2/77f11c7d07415cc91074417ae4f542f0en
dc.subject.meshFemaleen
dc.subject.meshFetal Hearten
dc.subject.meshFetal Movementen
dc.subject.meshHeart Rate, Fetalen
dc.subject.meshHumansen
dc.subject.meshPregnancyen
dc.subject.meshSignal Processing, Computer-Assisteden
dc.subject.meshTransducersen
dc.subject.meshUltrasonography, Doppleren
dc.subject.meshUltrasonography, Prenatalen
dc.titleDistance of foetal movement measured using the analytical signal derived from non-directional Doppler sounden
dc.typeArticleen
dc.contributor.departmentNational University Hospital, Reykjavik, Icelanden
dc.identifier.journalMedical engineering & physicsen

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