Automatic measuring method and device of intrapartum cephalopelvic relationship based on ultrasonoscopy

Abstract

The invention discloses an automatic measuring method and device of intrapartum cephalopelvic relationship based on ultrasonoscopy. The automatic measuring method comprises the steps that a puerpera transperineal ultrasonoscopy data set for training is obtained, and taken as a training set; data in the training set are input into a constructed neural network model, an end-to-end split model is trained, and interested areas of the symphysis pubis and the fetus head are split; training is conducted repeatedly, a trained neural network model is obtained; and in practice application, the ultrasonoscopy collected in real time is input into the trained neural network model, the interested areas of the symphysis pubis and the fetus head are obtained, enhancing and edging fitting are conducted onthe interested areas, and the fetus head angle of descending AOD of and the symphysis pubis-fetus head distance SFD are calculated. Compared with an existing intrapartum fetus parameter measuring method, according to the automatic measuring method and device, intrapartum fetus parameters can be accurately and objectively measured in real time, any priori knowledge and human intervention are not needed, the requirement of real-time application can be met, and clinical application prospects are achieved.

Description

technical field [0001] The invention belongs to the field of computer vision aided diagnosis, and in particular relates to the research on the segmentation method of transperineal ultrasonic images during labor, in particular to a method and device for automatically measuring the head-pelvic relationship during labor based on ultrasonic images. Background technique [0002] Factors affecting childbirth include four factors: labor force, birth canal, fetus, and mental psychology. The normal head delivery mechanism can be described as: when the fetal part passes through the birth canal, in order to adapt to the different shapes of the different planes of the pelvis, it performs a passive movement. A series of adaptive rotations, the process of passing through the birth canal with its smallest diameter. It can be seen that the core of the delivery mechanism is the lowering of the fetal head, and the intuitive description of head-position delivery is the movement trajectory of t...

AI Technical Summary

Problems solved by technology

However, due to the inconspicuous features of the pubic symphysis in ultrasound images, large morphological differences, severe edge loss, and serious edge loss of the fetal head contour, it is very difficult to realize the automatic measurement of intrapartum fetal ultrasound parameters. Therefore, the current intrapartum fetal ultrasound parameters There are few related studies on automatic measurement, and most of them stay at the theoretical stage, with poor real-time performance and difficult to apply clinically

Moreover, the existing measurement methods all need manual marking for assistance or use prior knowledge for measurement, which has limitations, and there is no automatic measurement method without manual intervention

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