Fetal Morphology Scan 18 – 20 weeks
A detailed ultrasound examination is performed of your baby from head to toe to exclude any structural abnormality. This is usually done between 18 and 20 weeks gestation, but don’t worry if you miss this window as it is not a problem to perform this scan up until 22 weeks gestation.
What’s involved in a Fetal Morphology Scan?
The scan is performed by placing an ultrasound transducer on your abdomen and takes around 45 minutes. Your bladder does not need to be as full as when you had your Nuchal scan but it is advisable to drink normally & not empty your bladder 30 minutes prior to the scan.
What do we look for at the Fetal Morphology Scan?
We will examine in detail the head and brain, face, heart, spine, chest, abdomen, stomach, kidneys, bladder, arms, hands, legs and feet. At this scan we can also tell you the gender of your baby if you wish to know.
Your baby will also be examined for any minor variations of normal anatomy that may be found in babies with a chromosomal abnormality. At the same time measurements will be taken to assess the baby’s growth and the position of the placenta.
If the placenta is low at the morphology scan, we will recommend a repeat ultrasound scan at 30 weeks to check placental localisation. Most “low-lying” placentae are not persistently low-lying at the follow-up scan at 30 weeks.
Results of the Fetal Morphology Scan
A formal report of the morphology scan will be sent to your referring GP or Obstetrician the same day.