Comparison between lateral and axial ultrasonic measurements of the fetal femur.
The necessity of adequate determination of fetal age is well recognized, and several different parameters have been used for this purpose. Lately fetal femur length has been accepted as a relatively accurate determination. It is customary to measure the femur in the lateral plane; however, because of positional changes the femur sometimes must be measured vertically. The aim of our study was to perform lateral and axial measurements of the femur at various gestational ages and to examine the relationship between them. Our results reveal a significant difference between both measurements in all age groups.
D005269:Femur / Q000033:anatomy & histology*; D005333:Fetus / Q000033:anatomy & histology*; D005865:Gestational Age; D006801:Humans; D014463:Ultrasonography