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AssigneeKoninklijke Philips N.V.
InventorsPallavi Vajinepalli, Ranjan Das, Celine Firtion, Rajendra Singh Sisodia, Lalit Gupta, Ganesan Ramachandran, Ajay Anand, John Petruzzello
Estimating the term…
Method, system and software product for identifying high risk pregnancies comprising the step of generating a spectrogram from ultrasound Doppler signals reflected from the uterine artery and determining the maximum frequency envelope of said spectrogram, and of defining a systolic part and a diastolic part of the maximum frequency envelope and calculating an area ratio under said systolic and diastolic part (AR). This area ratio relates to the blood volume in the uterine artery.
Method for determining at least one parameter that is suitable as a basis for identifying high risk pregnancies, wherein the method comprises the steps of:
4-7. (canceled)
A system for identifying high risk pregnancies wherein said system comprises:
(canceled)
The system according to claim 5, wherein the processor is further configured to determine at least one peak and one valley in the maximum frequency envelope, said peak corresponding to a peak systolic phase in a heart cycle and said valley corresponding to an end diastolic phase in a the heart cycle.
The system according to claim 5, further comprising means for presenting said area ratio to a user.
The system according to claim 5, wherein the processor is further configured to classify the acquired ultrasound Doppler signals as abnormal when said area ratio is greater than a predetermined threshold.
The system according to claim 6, wherein the processor is further configured to determine at least one of a Resistive Index, a Pulsatility Index and a Peak Systolic Velocity/End Diastolic Velocity ratio.
Dependencies are inferred from the claim text.