[Representation of the increase of fetal biparietal and thoracic diameter on a new (14-zone) ultrasonic diagnostic table].

: From the somatic development of the fetus one may conclude to its functional maturity and if birth is near to its life prospects too. Thus the ultrasonographic examination of the biparietal and thorax transversal diameter reflecting the somatic development is of prognostic significance too. The authors composed a new table to increase the information value of the ultrasonographic finding, for the uniform designation of the given BPD and THD (biparietal and thorax diameter) sizes and for the better recognition of the tendencies of BPD and THD changes. A new system of symbols and representation method were elaborated for the description of standard positions. According to the gestation weeks 14-14 BPD and THD size-ranges were separated. The so called "UFD" Ultrasonographic index of the Fetal Development gives information besides the gestation time also on the BPD and THD standard position of the fetus and demonstrates illustratively the direction and rate of deviation of the standard positions from the average. The system provides the possibility of a better information to the obstetrician or consulting physician who evaluates the US finding, a uniform interpretation of the findings and serves better the clinical diagnostics.