关键词: 低体质量儿, 巨大儿, 纯净波超声, 前腹壁脂肪厚度, 预测

Abstract: The application value and clinical significance of pure wave ultrasound measurement of fetal anterior abdominal wall fat thickness in predicting low body weight infants and macrosomia were explored in this paper. A total of 104 newborns were selected as the research object. According to the birth body mass of newborns, they were divided into normal group (n=74), low body weight infants group (n=12) and macrosomia group (n=18). The anterior abdominal wall fat thickness, birth weight, triceps brachii and subscapular skin fold thickness (SFT) of fetuses in the second and third trimester of pregnancy were compared. The relationship between the anterior abdominal wall fat thickness of fetuses and the postnatal SFT and birth weight was analyzed. The predictive value of the anterior abdominal wall fat thickness of fetuses for low body weight infants and macrosomia. The results showed that the fat thickness of anterior abdominal wall, birth body mass, SFT of triceps brachii and SFT under scapula in macrosomia group were higher than those in the normal group and low body weight infants group, and the above indexes in normal group were higher than those in low body weight infants group (P<0.05). The fat thickness of fetal anterior abdominal wall in the second and third trimester of pregnancy was positively correlated with birth weight, triceps brachii SFT and subscapular SFT (P<0.05). The predicted AUC of low body weight infants and macrosomia were 0.813 and 0.898, respectively. It can be seen that the measurement of fetal anterior abdominal wall fat thickness by pure wave ultrasound is closely related to neonatal birth weight, triceps brachii and subscapular SFT, and has certain value in predicting the occurrence of low body weight infants and macrosomia.

Key words: low body weight infants, macrosomia, pure wave ultrasound, anterior abdominal wall fat thickness, prediction