Keywords : abdominal circumference, abdominal diameter, AC, AFI, amniotic fluid index, aneuploidy, biparietal diameter, BPD, cerebral lateral ventricles, cervical funneling, cervical length, chromosomal abnormality, color Doppler, corrected BPD, CRL, crown rump length, Down syndrome, early pregnancy failure, EFW, embryonic heart rate, estimated fetal weight, femur length, fetal anemia, fetal biometry, fetal heart rate, fetal renal pelves, FL, GA, gestational age, HC, head circumference, hydocephalus, intrauterine growth restriction, IUGR, macrosomia, MCA, mean sac diameter, middle cerebral artery, nasal bone, nuchal fold, nuchal translucency, obstetrical ultrasound, occipital-frontal diameter, OFD, oligohydramnios, placenta previa, polyhydramnios, Society of Radiologists in Ultrasound, spectral Doppler, SRU, trisomy 13, trisomy 18, trisomy 21, umbilical artery, ventriculomegaly, yolk sac diameter