16640531. A FETAL MOVEMENT DETECTION METHOD FROM DOPPLER ULTRASOUND SIGNAL (KONINKLIJKE PHILIPS N.V.)
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A FETAL MOVEMENT DETECTION METHOD FROM DOPPLER ULTRASOUND SIGNAL
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A FETAL MOVEMENT DETECTION METHOD FROM DOPPLER ULTRASOUND SIGNAL
This abstract first appeared for US patent application 16640531 titled 'A FETAL MOVEMENT DETECTION METHOD FROM DOPPLER ULTRASOUND SIGNAL
Original Abstract Submitted
A method () of detecting fetal movements includes: deriving a plurality of peaks from the Doppler ultrasound signal acquired from a subject, each peak of the plurality of peaks being associated with an envelope of a signal segment of the Doppler ultrasound signal; calculating a density of the peaks as a function of a plurality of amplitude grids, the density indicating the number of peaks with amplitude in each amplitude grid; selecting a fetal movement threshold based on the calculated density, and determining whether a signal segment of the Doppler ultrasound signal includes a fetal movement by comparing the amplitude of the peak associating with the envelope of the signal segment with the fetal movement threshold.
