SYSTEM AND METHOD FOR IDENTIFYING HIGH RISK PREGNANCIES

摘要

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.

主权项

1. 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:
a) acquiring ultrasound Doppler signals reflected from the uterine artery; b) generating a spectrogram from the acquired ultrasound Doppler signals and determining the maximum frequency envelope of said spectrogram; c) defining (i) a systolic part which starts at a valley and ends at a peak in the maximum frequency envelope and (ii) a diastolic part of the maximum frequency envelope which starts at the peak and ends at a subsequent valley in the maximum frequency envelope and calculating an area ratio (AR) by dividing an area under the maximum frequency envelope in said systolic part by an area under the maximum frequency envelope in said diastolic part.