A method for automatic measurement of fetal head descent angle

A technology of fetal head descent and automatic measurement, which is applied in organ movement/change detection, medical science, diagnosis, etc., and can solve problems such as indistinct features of the pubic symphysis, large morphological differences, and missing edges

Active Publication Date: 2021-03-19
GUANGZHOU LIAN MED TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 achieve automatic measurement of AOD, so there is no related research on AOD automatic measurement.

Method used

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  • A method for automatic measurement of fetal head descent angle
  • A method for automatic measurement of fetal head descent angle
  • A method for automatic measurement of fetal head descent angle

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Embodiment

[0051] This embodiment discloses a method for automatically measuring the descending angle of the fetal head based on the segmentation of the pubic symphysis and the contour segmentation of the fetal head in ultrasonic images, such as figure 1 As shown, it mainly includes the following steps:

[0052] S1. Collect transperineal ultrasound images of pregnant women and record them as original images. The method of transperineal ultrasound image acquisition is to make the pregnant woman's legs and hips at a 45-degree angle, and her legs and knees at a 90-degree angle, lie on the bed in a semi-recumbent position, use a curved ultrasonic probe, and use a sagittal plane The form of the pubic symphysis is placed below the pubic symphysis, and the probe is moved slightly until the anatomy of the pubic symphysis and the contour of the fetal head can be clearly observed on the ultrasound image. A total of 88 ultrasound images were collected, and the size of each image was 1024*768.

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Abstract

The invention discloses an automatic fetal head descending angle measurement method. The method comprises the steps as follows: S1, a perineal approach ultrasonic image of a pregnant and laying-in woman and recorded as an original image; S2, performing pubic symphysis segmentation on the ultrasonic image; S3, performing fetal head outline segmentation on the ultrasonic image; S4, calculating the included angle formed between the connecting line of upper and lower edges of pubic symphysis and the tangent line of the lower edge of the pubic symphysis and the fetal head outline, which is AOD. Bymeans of the AOD automatic measurement method for evaluating the position of a fetal head, the position of the petal position can be measured accurately, objective and reliably, quantitative description of the position of the fetal position can be realized, a doctor is helped to make scientific decisions for the delivery process, so that the fetal-maternal damage is effectively reduced, unnecessary cesarean section is reduced, and the birth quality is improved.

Description

technical field [0001] The invention relates to the technical field of childbirth monitoring and ultrasonic image processing, in particular to an automatic monitoring method for fetal head descent angle based on ultrasonic image pubic symphysis segmentation and fetal head contour segmentation. Background technique [0002] The position of the fetal head is one of the main basis for assessing the progress of labor. Its dynamic monitoring helps to understand the status of the fetus in the uterus and respond in time, thereby effectively reducing the risk of childbirth, reducing unnecessary cesarean sections, and reducing maternal and fetal injuries. Traditional digital vaginal examination is still the gold standard for assessing fetal head position. Vaginal digital examination is a common method used by doctors to insert the index finger wearing a finger cot into the puerpera’s vagina to understand the position of the fetal head and the dilation of the cervix. Relevant studies...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/08
CPCA61B8/0866A61B8/5207
Inventor 陆尧胜杨梓铎齐建国
Owner GUANGZHOU LIAN MED TECH CO LTD
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