Doppler studies in pregnancy.. How we do

Doppler scans evaluate the blood flow through the placenta, umbilical cord and your baby's body. They help your doctor assess your baby's health and wellbeing. Doppler scans are most often done in the third trimester, along with a growth scan. They are also used to investigate possible pregnancy complications and monitor high-risk pregnancies. If your scan shows a problem, you'll need extra scans. If your baby needs to be born early, you'll need an induction of labour.
It's most often used during the third trimester in women with high-risk pregnancies and need extra care, for example, if:
1.you’re carrying twins or more, and there are signs of twin-to-twin transfusion syndrome (TTTS)
2. your baby is smaller than expected for his gestational age and may have intrauterine growth restriction (IUGR)
3. you are experiencing fewer baby movements
4. you have any bleeding during pregnancy
5. you’ve previously had a small baby
6. you’ve previously experienced a late miscarriage or suffered the loss of your baby at birth
7. you have an existing medical condition, such as diabetes or high blood pressure
8. you have a low or high BMI
9. you have low amniotic fluid (oligohydramnios)
10. you smoke