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Method for predicting birth weight of full-term newborn at 21-23 weeks of pregnancy

A technology for birth weight and newborns, applied in organ movement/change detection, complex mathematical operations, diagnosis, etc., to achieve the effect of improving pregnancy outcomes

Pending Publication Date: 2021-12-31
NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, there is no new model for predicting birth weight of newborns using two-dimensional and three-dimensional ultrasound parameters at 21-23 weeks of pregnancy

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  • Method for predicting birth weight of full-term newborn at 21-23 weeks of pregnancy
  • Method for predicting birth weight of full-term newborn at 21-23 weeks of pregnancy

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Embodiment Construction

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] The method for predicting the birth weight of a full-term (after 37 weeks) newborn at 21-23 weeks of pregnancy comprises the following steps,

[0036] Step S1: Establish a neonatal weight prediction model; the neonatal weight prediction model is EFW=5016.51-205.71×X1+16.30×X2+102.19×X3+86.64×X4, where EFW is the predicted weight of the newborn, and the unit is g; X1 is the exact gestational week at the time of ultrasound examination, and X2 is the body mass index of the pregnant woman at 21-23 weeks of pregnancy, in kg / m 2 ; X3 is the partial thigh volume of the fetus (50% of the volume of the middle thigh) during ultrasound examination, and the unit is cm 3 ; X4 is the abdominal circumference of the fetus d...

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Abstract

The invention discloses a method for predicting birth weight of a full-term newborn at 21-23 weeks of pregnancy. The method comprises the following steps: S1, building a newborn weight prediction model that is EFW = 5016.51-205.71*X1+16.30*X2+102.19*X3+86.64*X4, wherein, EFW is the predicted neonatal weight in g; X1 is the accurate gestational week during the ultrasonic examination, and X2 is the body mass index (in kg / m<2>) of a pregnant woman at second trimester B-ultrasonic examination; X3 is the volume of partial thighs of a fetus at ultrasonic examination in cm<3>; and X4 is the abdominal girth (in cm) of the fetus at ultrasonic examination; S2, collecting gestational weeks and progestational body mass indexes of the pregnant woman; S3, carrying out two-dimensional ultrasonic measurement on the abdominal girth of the fetus at 21-23 weeks of pregnancy; S4, carrying out three-dimensional ultrasonic measurement on the volume of partial thighs of the fetus at 21-23 weeks of pregnancy; and S5, substituting data collected in the steps S2-S4 into the newborn weight prediction model, and calculating the predicted weight of the newborn. The method can improve the accuracy of predicting the birth weight of the full-term newborn, and be used for advancing maternal management to the second trimester, thereby scientifically improving pregnancy results.

Description

technical field [0001] The invention relates to the technical field of birth weight prediction of newborns, in particular to a method for predicting the birth weight of full-term newborns at 21-23 weeks of pregnancy. Background technique [0002] With the widespread application of ultrasound in obstetrics, it is widely used to estimate the birth weight of newborns by combining various ultrasound measurement parameters before delivery. At present, ultrasound is used to estimate the birth weight of newborns and is used 1-2 weeks before labor in the third trimester, and it is impossible to scientifically manage pregnant women from the second trimester. Moreover, most ultrasound examinations in the third trimester use two-dimensional ultrasound measurements, and seldom use three-dimensional ultrasound parameters to predict newborn birth weight. The traditional two-dimensional ultrasound image acquisition and imaging system provides a two-dimensional image of a certain part of t...

Claims

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Application Information

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IPC IPC(8): A61B8/08A61B8/00G06F17/18G06K9/62
CPCA61B8/0866A61B8/483A61B8/5223G06F17/18G06F18/2135
Inventor 杨芳徐彩玲廖淑欣邱庭英
Owner NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV
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