Bpd ultrasound dating table
The real time ultrasound scanner has given a number of ultrasonic biometric parameters to determine GA.
Most commonly fetal parameters used to determine GA are bi-parietal diameter (BPD), crown-rump length, head circumference and femur length.
Average growth rate of BPD was found to be 0.31 cm/week from 13 to 28 weeks which then later reduced to 0.23 cm/week from 28 to 36 weeks of gestation.
Therefore, prediction from ultrasound should be more accurate.
Therefore, large scale studies should be done and population-specific tables should be derived to correlate BPD and GA.
Keywords: Antenatal, bi-parietal diameter, expected date of delivery, gestational age, pregnancy, ultrasonography How to cite this article: Jaiswal P, Masih WF, Jaiswal S, Chowdhary DS.
Not only has it provided information about age but also fetal weight and growth of the fetus.
In a country like India where most females don't keep a record of last menstrual period (LMP) then these parameters are valuable in estimating GA of fetus.