Systems and methods for fetal monitoring
AssigneeMayo Foundation for Medical Education and Research
InventorsPaul A. Friedman, Dorothy J. Ladewig, Itzhak Zachi Attia, Kyle D. Traynor
Life of this patent
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Abstract
A system obtains a maternal electrocardiogram (ECG) signal that represents an ECG of a pregnant mother during a first time interval. The system further obtains a mixed maternal-fetal ECG signal that represents a combined ECG of the mother and her fetus during the first time interval; processes the maternal ECG signal and the mixed maternal-fetal ECG signal to generate a fetal ECG signal that represents the ECG of the fetus during the time interval, the fetal ECG signal substantially excluding the maternal ECG signal; and provides an output based on the fetal ECG signal.
Claims20
A method, comprising:
- obtaining at least one channel of a maternal electrocardiogram (ECG) signal that represents an ECG of a pregnant mother during a first time interval, wherein the maternal ECG signal is acquired from a first set of electrodes affixed to at least one of an abdominal region of the mother or a chest region of the mother;
- obtaining at least one channel of a mixed maternal-fetal ECG signal that represents a combined ECG of the mother and her fetus during the first time interval, wherein the mixed maternal-fetal ECG signal is acquired from a second set of electrodes;
- synchronizing multiple channels of at least one of the maternal ECG signal or the mixed maternal-fetal ECG signal thereby aligning beats from the multiple channels in time;
- processing synchronized channels of the maternal ECG signal and the mixed maternal-fetal ECG signal to generate a fetal ECG signal that represents the ECG of the fetus during the time interval, the fetal ECG signal substantially excluding the maternal ECG signal;
- and
- providing an output based on the fetal ECG signal.
A method, comprising:
- receiving multiple channels of a first ECG signal, wherein the first ECG signal is a mixed maternal-fetal ECG signal that represents a combined ECG of a pregnant mother and her fetus, wherein the mixed maternal-fetal ECG signal was acquired using a first set of electrodes;
- synchronizing the multiple channels of the first ECG signal thereby aligning beats from the multiple channels in time;
- processing the multiple, synchronized channels of the first ECG signal to determine values for one or more features of the first ECG signal;
- determining, based on the determined values for the one or more features of the first ECG signal, a condition of at least one of the mother or the fetus;
- and
- providing an output based on the determined condition of the at least one of the mother or the fetus.
Dependencies are inferred from the claim text.