Processing unit and method for use in fetal monitoring
AssigneeKoninklijke Philips N.V.
InventorsChristoph Florian Franck, Markus Silvester Wohlschlager
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Abstract
A device and method for deriving and displaying a time-averaged fetal heart rate signal in conjunction with microvariability information relating to variation in the beat-to-beat heart rate signal within the different time-averaging epochs or windows. Supplementary information is displayed, for example temporally aligned or registered with the time-average heart rate signal, which is indicative of variation information for the signal during averaging windows of the time-averaged signal.
Claims14
A processor configured to:
- receive physical sensor data containing information indicative of fetal heart activity and process the physical sensor data to derive a fetal heart rate signal;
- derive a moving time-average signal from the fetal heart rate signal, the fetal heart rate signal having a time averaging window of a defined duration;
- derive supplementary information for supplementing the moving time-averaged signal additional information about fetal heart rate microvariability based on local variation of the fetal heart rate signal during each averaging window of the moving time-average signal;
- generate a display output for provision to a display device, the display output for simultaneous display of:
- a graphic representation of a signal trace of the moving time-average heart rate signal, and a graphic representation of the supplementary information.
A processing method comprising:
- receiving physical sensor data containing information indicative of fetal heart activity and processing the physical sensor data to derive a fetal heart rate signal;
- deriving a moving time-average signal from the fetal heart rate signal, the fetal heart rate signal having a time averaging window of a defined duration;
- deriving supplementary information for supplementing the moving time-averaged signal additional information about fetal heart rate microvariability based on local variation of the heart rate signal during each averaging window of the moving time-average signal;
- and
- generating a display output for provision to a display device, the display output for simultaneous display of:
- a graphic representation of the moving time-average heart rate signal, and a representation of the supplementary information.
A non-transitory computer readable medium that stores therein a computer program product, which, when executed on a processor, causes the processor to:
- receive physical sensor data containing information indicative of fetal heart activity and processing the physical sensor data to derive a fetal heart rate signal;
- derive a moving time-average signal from the fetal heart rate signal, the fetal heart rate signal having a time averaging window of a defined duration;
- derive supplementary information for supplementing the moving time-averaged signal additional information about fetal heart rate microvariability based on local variation of the heart rate signal during each averaging window of the moving time-average signal;
- and
- generate a display output for provision to a display device, the display output for simultaneous display of:
- a graphic representation of the moving time-average heart rate signal, and a representation of the supplementary information.
Dependencies are inferred from the claim text.