Structureel Echoscopisch Onderzoek (structural sonogram)

20 week scan

The 20 week scan is a medical sonogram and takes about 45 minutes. We ask you not to bring any children under the age of 4. 

The 20 week scan can be done between 18 and 22 weeks of pregnancy. With this sonogram we can look at the intestines of the baby. We check the brain, skull, face, spinal column, heart, stomach, bowels, bladder and limbs. We also check the amount of amniotic fluid, the position of the placenta and the growth of the baby. In most cases we can see the sex of the baby, but this is not the purpose of the sonogram.

With the 20 week scan we can track down the biggest abnormalities. Smaller abnormalities aren’t always found and there are also diseases that can’t be seen with a sonogram. A good result is therefore not a guarantee for a healthy baby.

With the 20 week scan Down’s Syndrome can’t be tracked!

Choosing for the 20 week scan or not
The 20 week scan is, just as the NIPT and the combination test, not a required examination. You have to think about a bad result thoroughly.

Benefits of the 20 week scan
In the most cases we see a normaly developing child. This is reassuring for the expectant parents.
Sometimes we see abnormalities that you can prepare yourself for. The location of the delivery might be adapted to the result of the test.

Disadvantage of the 20 week scan
It is a good thing to realise that not all the abnormalities are (able to be) seen on the sonogram. The sonogram can make you more insecure. Once in a while there can be doubt about small things. In that case we make an appointment for repetition of the sonogram. Sometimes the abnormality disappeared or turns out to be inoccent.

Very rarely we find an abnormality that is so serious that you have to think about ending the pregnancy. This is very burdening of course.

The 20 week scan is covered by health insurance. If a follow-up investigation is required the insurance also covers it. Sometimes you have to pay (a part of) the investigation. This depends of your deductibles. Ask your health insurance about this.