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101例足月单胎头位初产妇,于临产前一周内或第一产程初,用A型超声测量胎头双顶径,同时用皮尺测量宫底高和腹围,再用公式计算胎儿体重,与出生体重相比较发现,宫腹法误差绝对值≤250g者为64.35％,而双顶径法为54.45％;宫腹法对体重3500～4000g以上之胎儿估算尤为准确,其平均误差绝对值分别为121g及206g,而双顶径法分别为273g及843g。宫腹法及双顶径法与出生体重间相关回归分析,宫腹法高度紧密相关(r=0.8454),双顶径法中度紧密相关(r=0.6120)。对足月单胎头位妊妇,用宫腹法估算胎儿体重简便、经济实用。
101 cases of full-term single-head primipara, during the first week before labor or at the beginning of the first stage of labor, using the A-type ultrasound measured fetal head biparietal diameter, while measuring the fundus height and abdominal circumference with a tape measure, and then calculate the weight of the fetus , Compared with birth weight found that the absolute error of uterine abdominal method ≤ 250g was 64.35%, while the biparietal method was 54.45%; Palace abdominal method for weight 3500 ~ 4000g fetus more accurate estimates of the average error of the absolute value Respectively 121g and 206g, while the biparietal diameter method was 273g and 843g respectively. Hysteroscopy and biparietal method and birth weight were used to analyze the correlation between the two methods. Hypotasy was highly correlated (r = 0.8454) and biparietal method was moderate (r = 0.6120). Full-term single-head pregnant women, with abdominal method estimated fetal weight is simple, economical and practical.