What is BPD HC AC FL in fetal biometry?

Biparietal diameter (BPD) is one of the basic biometric parameters used to assess fetal size. BPD together with head circumference (HC), abdominal circumference (AC), and femur length (FL) are computed to produce an estimate of fetal weight.

How do you read fetal measurements?

CRL (crown-rump length), the length from the top of the head to your baby’s bottom, measurement taken in the first trimester. AC (abdominal circumference), the length going around your baby’s belly. FL (femur length), the length of a bone in your baby’s leg.

What is the normal BPD at 12 weeks?

Results: The mean ± SD of BPD value at 12 weeks was 20.4±0.94 mm, which gradually increased to 92.5±2.89 mm at full term. There was a strong relationship between BPD and GA as indicated by polynomial regression analysis.

What is a normal Biparietal diameter at 12 weeks?

Calculating estimated fetal weight (EFW)

Gestational Age (Weeks)	BPD	Head Circumference
12 weeks	21	70
13 weeks	25	84
14 weeks	28	98
15 weeks	32	111

What should be the CRL at 12 weeks?

Our present study, in a large cohort, suggests that 12 weeks’ gestation (CRL > 55.4 mm) is a safe cut-off for decision-making in fetuses identified sonographically as males.

What can you tell from a 12 week ultrasound?

And when you’re pregnant, one of the very first milestones is getting to see your child on an ultrasound. A positive pregnancy test and plenty of morning sickness are proof enough that you’re pregnant, but your first ultrasound — often around 12 weeks — provides a different kind of evidence that you’re growing a baby.

What is the normal size of nuchal translucency?

What is a normal nuchal translucency measurement? An NT of less than 3.5mm is considered normal when your baby measures between 45mm (1.8in) and 84mm (3.3in) . Up to 14 weeks, your baby’s NT measurement usually increases as they grow.

What is CRL in ultrasound?

Crown-rump length (CRL) is an ultrasound measurement that is used during pregnancy. The baby is measured, in centimeters, from the top of their head (crown) to the bottom of their buttocks (rump).1 The limbs and yolk sac are not included in the measurement.