Title:
心拍信号を分離するための胎児超音波処理ユニット
Document Type and Number:
Japanese Patent JP7102630
Kind Code:
B2
Abstract:
A processing unit and method are provided for processing fetal Doppler ultrasound data to extract a set of signals representative of different distinct heart rate signal sources, i.e. maternal heart rate and fetal heart rate. Doppler data is received corresponding to a plurality of different depth zones (16a, 16b, 16c) in the fetal region and, these processed into a set of input channels, each corresponding to a different depth. These are then processed successively by a PCA algorithm followed by an ICA algorithm, which work to unmix the multiple heart rate sources present in each of the input channels, and derive a set of output signals from the ICA which can be taken as representative of separate heart rate sources.
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Inventors:
Wall Schlager Marx Sylvester
Frank Christoph Florian
Frank Christoph Florian
Application Number:
JP2021563106A
Publication Date:
July 19, 2022
Filing Date:
April 22, 2020
Export Citation:
Assignee:
Koninklijke Philips N.V.
International Classes:
A61B8/02; A61B5/0245
Domestic Patent References:
| JP2018527101A |
Foreign References:
| US20130158407 | ||||
| WO2014159348A1 | ||||
| US20160022164 |
Other References:
A. Kribeche et al.,Separating fetal Doppler signals in pregnancy using Independent Component Analysis : application to the extraction of fetal heart rate and global movement,IEEE Ultrasonics Symposium 2005,IEEE,2005年,pp. 1319-1322,ISSN 1051-0117, DOI: 10.1109/ULTSYM.2005.1603096
Attorney, Agent or Firm:
Fueda Hidesen
Takahiro Igarashi
Takahiro Igarashi