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US 8,617,076 B2Granted
Maternal contribution detection during fetal heart monitoring
AssigneeGeneral Electric Company
InventorsSerguei Kabakov, Bradley Fox, Steven Mitchell Falk
Life of this patent
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Abstract
A fetal heart signal contribution is determined from an ultra sound signal by suppressing any maternal contribution from the ultrasound signal. The fetal heart signal contribution is canceled or subtracted from the ultrasound signal. An alarm is outputted based upon a result of the cancellation.
Claims20
A method comprising:
- acquiring an ultrasound signal from a fetal heart from an ultrasound transducer;
- determining a fetal heart signal contribution to the ultra sound signal by suppressing any maternal contribution from the ultrasound echo signal, wherein the fetal heart signal contribution is a component of an ultrasound Doppler echo signal that is caused by pulsations of a fetal heart and wherein a maternal contribution is a component of an ultrasound Doppler echo signal that is caused by pulsations of blood in maternal abdominal muscles;
- canceling the fetal heart signal contribution from the ultrasound signal;
- and
- triggering an alarm based upon a result of the cancellation.
2 more elements
A fetal heart monitoring system comprising:
- an ultrasonic transducer;
- an alarm;
- a controller configured to generate control signals directing the operation of the ultrasonic transducer and to receive echo signals from the ultrasonic transducer, the controller configured to:
- acquire an ultrasound signal from a fetal heart from the ultrasound transducer;
- and
- determine a fetal heart signal contribution to the ultrasound signal by suppressing any maternal contribution from the ultrasound signal, wherein the fetal heart signal contribution is a component of an ultrasound Doppler echo signal that is caused by pulsations of a fetal heart and wherein a maternal contribution is a component of an ultrasound Doppler echo signal that is caused by pulsations of blood in maternal abdominal muscles;
- cancel the fetal heart signal contribution from the ultrasound signal;
- and
- triggering the alarm based upon a result of the cancellation.
6 more elements
An apparatus comprising:
- a non-transitory computer-readable medium containing computer-readable code to direct a processor to:
- acquire an ultrasound signal from a fetal heart from an ultrasound transducer;
- determine a fetal heart signal contribution to the ultrasound signal by suppressing any maternal contribution from the ultrasound signal, wherein the fetal heart signal contribution is a component of an ultrasound Doppler echo signal that is caused by pulsations of a fetal heart and wherein a maternal contribution is a component of an ultrasound Doppler echo signal that is caused by pulsations of blood in maternal abdominal muscles;
- and
- cancel the fetal heart signal contribution from the ultrasound signal;
- and
- output an alarm based upon a result of the cancellation.
4 more elements
Dependencies are inferred from the claim text.