Middle pelvis plane fetal headrest transverse position non-uniform inclination potential identification method

Abstract

The invention provides a method for identifying non-uniform lateral inclination potential of a middle pelvic plane fetal headrest. The method comprises the following steps: acquiring ultrasonic images of upper and lower symphysis pubis edges and a fetal head of a pregnant woman; determining a first space three-dimensional coordinate of a feature point in the pelvis in a magnetic field coordinate system based on a positioning sensor; further constructing a three-dimensional pelvis model; determining second three-dimensional space coordinates of the two fontanels based on measurement of a finger sensor; converting the three-dimensional pelvis model into a corresponding coordinate system in the internal measurement mode to obtain a corresponding internal measurement pelvis model; determining a middle pelvis plane function corresponding to the pregnant woman based on the internal measurement pelvis model; based on the second three-dimensional space coordinates corresponding to the two fontanels and the middle pelvis plane function, generating a fetal headrest transverse position non-uniform inclination potential two-dimensional diagram; s8, obtaining a corresponding pillow transverse position non-uniform inclination potential recognition result based on the fetal head non-uniform inclination potential two-dimensional diagram; the method is used for recognizing the situation that the transverse position of the fetal headrest is not evenly inclined, and a doctor can accurately and visually judge the delivery difficulty and process.

Description

technical field [0001] The invention relates to the technical field of fusion of medical ultrasound imaging, electromagnetic positioning and image processing technology, in particular to a method for identifying the uneven lateral inclination of a fetal headrest in a mid-pelvic plane. Background technique [0002] At present, the causes of cephalic dystocia are complicated, and the abnormal position of the fetal head is the primary cause of cephalic dystocia. During cephalic delivery, uneven tilting of the fetal head may occur when the fetal head passes through the birth canal in the transverse, posterior or anterior occipital position. Among them, the occipital transverse position of the fetal head before the parietal bone first enters the pelvis is called anterior uneven tilt. Increased risk of bleeding and infection. Therefore, the diagnosis of anterior disproportionate tilt is still important and irreplaceable. When applying the new concept of labor to manage the labo...

AI Technical Summary

Problems solved by technology

[0003]The middle pelvic plane is the narrowest plane of the bony birth canal. When the labor process progresses slowly or the active phase stagnates, the cause needs to be clarified. When the fetal head enters below the middle pelvic plane, it may not To obtain an ideal brain midline image, manual digital inspection will also be unable to clarify the current fetal head posture due to skull shaping, making it difficult to identify the possible uneven inclination of the fetal headrest transverse position in the mid-pelvic plane

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