How to.Predict the weight of our baby in ultrasound?
Answers
The estimation of fetal weight by ultrasound is routinely used in clinical practice. Parameters used to estimate the birth weight are attractive to clinicians as they are important variables affecting perinatal mortality [1,2]. Studies have revealed that estimation with multiple parameters may be more accurate as compared to that with a single parameter [3-7]. Fetal biparietal diameter (BPD), head circumference (HC), femur length (FL) and abdominal circumference (AC) are essential parameters for the estimation of prenatal fetal weight, and of them, AC is a parameter with the highest sensitivity [8-16]. This study aimed to introduce a new technique for the AC measurement, which is easy and convenient to operate as compared to traditional methods, and also accurate in the estimation of fetal weight.
Step 1
Measure the baby's head. A measurement called the biparietal diameter assesses the diameter between the two sides of the head. This is generally done in an ultrasound no sooner than 13 weeks. the biparietal diameter usually grows from approximately 2.4 cm in the initial measurement to 9.5 cm at birth.
Step 2
Measure the length of the baby's femur. The femur is the body's longest bone, and is considered an indicator of your baby's growth in terms of length. this number will usually in from about 1.5 cm to about 7.8 cm at birth.
Step 3
Measure the circumference of the abdomen. The circumference of the baby's abdomen is an important ultrasound measurement for assessing your baby's weight late in your pregnancy.
Step 4
Use polynomial equations featuring the biparietal diameter, femur length and abdominal circumference to arrive at the estimated fetal weight. This can be done at any stage of pregnancy.