[Outline for the control of the course of fetal growth]

In a synoptic schema are presented the percentiles curves of the biparietal diameter, the sum of the sagittal and transversal thoracic diameter and the fetal weight (Lubchenco modif.). To attain the percentiles curves of the ultrasonic parameters we applied 5400 mensurations of the biparietal diameter and 1300 mensurations of the thorax. In the diagram are published the percentiles P 10, P 25, P 50, P 75, P 90. It is possible to diagnose a divergence between the cephalic and thoracic growth (dystrophia, hypertrophia) and estimate the gestation weeks.