Schillinger H, Müller R, Kretzschmar M, Wode J
Geburtshilfe Frauenheilkd. 1976 Jun;36(6):500-6.
In 219 normal pregnancies between 28 and 42 weeks the relationships of different ultrasound measurements of the fetal head and the fetal body to the gestational age were determined in order to improve the accurate diagnosis of fetal maturity during the last trimester of pregnancy. With the A and B ultrasound apparatus of Kretz, the biparietal diameter was determined by the A mode, the fronto occipital plane and the largest abdominal diamter were determined by the B scan. The following ultrasound measurements were taken: the two horizontal and transverse diameters, the circumferences and the planes. The abdominal measurements showed a higher rate of growth, compared to the cranial measurements a lesser rate of growth retardation and a higher variation of the normals. The correlation of the abdominal measurements with the gestational age was worse than that of the cranial measurements. Wth the exception of the biparietal diameter in the A mode, the mean diameters of the cranial and abdominal measurements gave better results than the single diameters. Circumference and surface measurements showed no advantages. The best results were obtained by combined fetal head and body measurements using the summation of the biparietal diameter in the A mode and the mean abdominal diameter in the B scan.
为提高妊娠晚期胎儿成熟度的准确诊断，对219例孕28至42周的正常妊娠进行研究，确定胎儿头部和胎儿身体不同超声测量值与孕周的关系。使用Kretz的A、B型超声仪，通过A型超声确定双顶径，通过B型超声扫描确定额枕平面和最大腹径。进行了以下超声测量：两个水平和横向直径、周长和平面。与头部测量相比，腹部测量显示出更高的生长速率、更低的生长迟缓率和更高的正常变异。腹部测量与孕周的相关性比头部测量差。除A型超声中的双顶径外，头部和腹部测量的平均直径比单个直径给出了更好的结果。周长和表面积测量没有优势。通过将A型超声中的双顶径与B型超声扫描中的平均腹径相加进行胎儿头部和身体联合测量，得到了最佳结果。
