An Anomaly Scan is best performed between 19-22 weeks. A lot has happened in the first half of your pregnancy so this is a very detailed examination that will check it all.
The sonographer will measure the baby to check it’s growing and moving correctly for your expected dates. She will also check the brain, spine, heart, face, abdominal organs and limbs are developing. She will check the placenta, umbilical cord, amniotic fluid as well as your cervix, uterus and pelvis.
You will be able to watch the baby kick around, listen to its heartbeat and see that it looks like a real person already with cute profile images. The gender can also be quite confidently seen at this age but will only be documented if you wish to know. Occasionally, due to the position of the baby, it will be impossible to see the gender. Your sonographer will do her best to see it but some babies are stubborn and will keep you in suspense until it’s born.
If the baby is in a good position we may be able to obtain a few 3D images. Successful 3D/4D imaging is very dependent on the position of the baby and it must have amniotic fluid in front of the region being scanned in order to obtain a clear image. Foetuses at this age are still very skeletal so don’t expect to see a chubby-cheeked baby. For more information on 3D/4D ultrasound, click here.
Please note that an Anomaly Scan does not exclude all abnormalities. If an abnormality is found, your doctor will be informed promptly to facilitate further investigations. If you don’t have a regular GP, you will be able to consult with one of our clinicians and we will support you while making appropriate arrangements and referrals to specialists.
An Anomaly Scan can take between 40-60 minutes. If the baby is in a difficult position the sonographer may ask you to go for a short walk in an attempt to get the baby to roll over. Don’t be concerned if you need to hop up and down a few times to wake your baby up. Sonographers will try anything to get the images they need!
The sonographer will discuss the ultrasound findings with you and tell you if everything appears normal or if there are any concerning features. You will receive a small printed image of your baby and all of your images as jpg files on a CD. An official report will be emailed to you, and your referring doctor if applicable, later in the day.
Typically, the Anomaly Scan is the last ultrasound you have for your pregnancy unless we find something that needs to be monitored.
Meet our experts
- Qualifications: BAppSc (Exercise and Sport Science), GDMU
- Location(s): Aberdeen - ROC Private Clinic
- Clinical Interest(s): Diagnostic Medical Ultrasound: General, Small Parts, Musculoskeletal, Obstetrics, Gynaecology, Vascular.
Ingrid Yuile is an Australian Accredited Medical Sonographer and has moved all the way from her hometown, Sydney, to join our team in Aberdeen. With nearly 10 years of experience across all disciplines, Ingrid's skill as a general sonographer is a fantastic addition to our medical practice.