![]() When the colour Doppler option is used, the computer changes sound waves into different colours. This helps to show how well the placenta is working and whether your baby is getting all the oxygen and nutrients he needs. A regular ultrasound also uses sound waves, but it doesn't show blood flow.Ī Doppler scan will measure the blood flow through the umbilical cord and around different parts of your baby's body, such as his brain and heart. As blood cells move through vessels, they cause changes in sound waves. It uses high-frequency sound waves that bounce off moving red blood cells and, so, is helpful to check blood flow. If your baby needs to be born early, you'll need an induction of labour.Ī Doppler scan is a non-invasive ultrasound that assesses your baby’s growth and wellbeing and identifies any health concerns. If your scan shows a problem, you'll need extra scans. They are also used to investigate possible pregnancy complications and monitor high-risk pregnancies. Doppler scans are most often done in the third trimester, along with a growth scan. They help your doctor assess your baby's health and wellbeing. Is it safe to use a portable Doppler machine at home?ĭoppler scans evaluate the blood flow through the placenta, umbilical cord and your baby's body. ![]() What is the difference between a Doppler scan and a handheld Doppler?.What if my Doppler scan shows a problem?.What is checked during a Doppler scan in pregnancy?.Why might I need a Doppler ultrasound scan during pregnancy?.When is a Doppler ultrasound done during pregnancy?. ![]()
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