Fetal dönemde fetal yaşın belirlenmesi

Determination of fetal age during the fetal period Aim: The aim of this study was to determine the fetal age according to crown rump length (CRL), head circumference (HC), bi-parietal diameter (BPD), femur length (FL) and foot length (FtL) during the fetal period. Material and Methods: Two hundred and thirty five (male:120, female:115) fetal morphometric parameters were obtained from human fetuses aged between 6-40 weeks of gestation in this study. The fetal dimension parameters (CRL, HC, BPD, FL and FtL) of the fetuses were measured. The fetal ages were determined according to each fetal parameter. Findings: Means and standard deviations of the all parameters with respect to gestational weeks, trimester and months groups were calculated. No significant differences were observed between sexes for any of the parameters (p>0.05). All parameters were increasing with age during fetal period. There was significant correlation between gestational age and all parameters (p<0.001). There were differences between the gestational ages of each fetal parameter. The correlation coefficients of gestational ages according to fetal parameter were different between trimester groups. Conclusion: New data are derived to evaluate gestational age for human fetuses. Data acquired from this study is believed to contribute for studies of obstetrics, perinatology, forensic medicine and fetal pathology on fetal development, and diagnosis of its anomalies, pathologies and variations.