Please read this information carefully and thoroughly before undergoing an ultrasound.

In our centre we perform diagnostic ultrasounds, screening ultrasounds and ultrasounds on request.

Diagnostic ultrasounds:

Your midwife or doctor determines which diagnostic ultrasounds are required during your pregnancy. Health insurers only reimburse ultrasounds which are performed based on medical indications.

Medical indications are:

  • determining how advanced the pregnancy is. The gestational age can be reliably determined from 8 weeks plus 5 days. The gestational age cannot be determined earlier than that in the pregnancy. Therefore, an ultrasound prior to 8 weeks and 5 days is not reimbursed by the insurer. The gestational age is most reliably identified from 10 weeks.
  • diagnostic ultrasound to look at why there is blood loss,
  • diagnostic ultrasound to look at the growth of the baby,
  • diagnostic ultrasound to locate where the placenta is,
  • diagnostic ultrasound after 35 weeks to see the position of the baby.

    The following applies for the abovementioned ultrasounds:
  1. These ultrasounds are not being performed to search for possible abnormalities of the child. If no specific abnormalities are noted during this procedure, that does not guarantee a healthy child. 
  2. If the sonographer notices any peculiarities or abnormalities of your child, placenta and/or uterus when performing the abovementioned, these are always reported to you, and your midwife or doctor.

In addition to the ultrasounds requested by your midwife, you can choose whether you would like to have a combined test performed early in your pregnancy, and between 18 to 22 weeks a 20-week scan (SEO). The combined test and the 20-week scan (SEO) are screening ultrasounds. You will receive detailed information about both procedures from your referrer.

Combined test:

  1. The result of the combined test provides a reliable estimate of the likelihood that your child has Down syndrome (trisomy 21), or Edwards’ syndrome (trisomy 18) or Patau syndrome (trisomy 13).
  2. The result of the combined test is a probability and not a diagnosis. Therefore, it provides no certainty.
  3. With an increased risk (one in 200 or higher), you can choose, in consultation with your referrer, a more specific screening (NIPT) or a diagnostic test that determines with certainty whether your child is affected.
  4. It is possible that we cannot directly communicate the results of the test because there is no result yet from the blood test or the result needs to be reviewed again by the laboratory. You will then receive the results a few days later.
  5. We have an internal control system for all the combined tests. Occasionally through this control it appears that your result must be adjusted. If this occurs, you will be contacted by one of our sonographers.
  6. The results of the screening and further procedures may lead to the need to make difficult choices. Help is available.
  7. Since 2014, the combined test is only reimbursed by your insurer if you are 36 or older, or have a medical indication.   


The Fetal Anomaly Scan (SEO or 20-week scan)

  1. The SEO examines whether there is evidence of structural abnormalities in your child.
  2. An SEO does not detect all abnormalities. That applies for all ultrasounds as not all abnormalities are always visible. In addition, not all birth defects are present during the pregnancy.
  3. If no abnormalities are found, this is not a guarantee of a healthy child.
  4. If an abnormality is noticed during the SEO, the consequences for the child are not always clear. You are then referred to a specialist gynaecologist who can confirm the abnormality. It is also possible that a follow-up examination may prove that there is nothing wrong with your child, or that it is still unclear what the situation is and what impact it may have.
  5. The SEO ultrasound is reimbursed by the insurer.  


Image quality:
The quality of the images may be affected by, among other things, the position of the baby in the abdomen, the position of the placenta and the amount of amniotic fluid around the baby. Another factor is the thickness of the abdomen wall. In our experience, the images for women with a higher BMI (Body Mass Index) are often nicer and better to evaluate if they are made later in the pregnancy.

Early ultrasound:
Early in pregnancy, the uterus is still small and is completely hidden behind the pubic bone (up to 10 weeks). Therefore, for a medical ultrasound, a small probe is inserted in the vagina to make the ultrasound. This is usually not painful. The imaging is significantly better than that of an ultrasound through the abdominal wall. You can already see the heart beating in an ultrasound from six weeks. The

Ultrasounds on request (non-medical ultrasounds):

  1. We can perform an ultrasound for you on request. These ultrasounds are not reimbursed by your insurer.
  2. The purpose of the ultrasound on request is in no way a medical diagnosis. Abnormalities by the mother or the child are also not sought. Therefore, Verloskundig Centrum SAM&, or the individual sonographers, cannot be held liable regarding any abnormalities that later transpire.
  3. When the sonographer accidently sees, or suspects, an abnormality, they will inform your midwife or doctor.
  4. If you are aware of (or suspect) abnormalities, we would ask you to mention this to the sonographer before the commencement of the ultrasound.
  5. We stress that with this ultrasound there is no question of medical treatment, nor of medical advice or medical assessment.
  6. The full responsibility remains with the attending midwife and/or doctor. That means that there is in no way a medical agreement, as is meant in article 7:446 BW.
  7. No statement made during or after the ultrasound consultation should be construed as medical assessment.
  8. There is no guarantee given on gender determination. No rights may be derived from the determination made; therefore, no liability is accepted in this regard.
  9. The image quality is determined by a number of factors over which we have no influence. (See also the section “Image quality”.) Therefore, we can provide no guarantee for the quality of the images.

If you receive photos, DVDs or a USB stick, in addition to the images from the ultrasound, it also contains other private and sensitive information.
You are responsible for protecting this data against unauthorised use by third parties.


In the Amstellandziekenhuis
route C geel
Laan vd Helende Meesters 8
1186 AM Amstelveen
Tel.: +31 (0)20 - 6400810