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Doppler flow is a type of ultrasound. It uses sound waves to measure the flow of blood through a blood vessel. The results are shown on a computer screen in lines called waveforms. It’s sometimes called Doppler velocimetry. A Doppler flow study may be used during pregnancy to check the health of the unborn baby (fetus). It checks blood flow in:
A Doppler flow study is often used when a baby has intrauterine growth restriction (IUGR). This is when the baby is smaller than normal for the number of weeks of pregnancy. The waveforms may show that there is not enough blood flow in the umbilical vessels of a baby with fetal growth restriction. This can mean that the baby may not be getting enough blood, nutrients, and oxygen from the placenta. Doppler flow is often used when a woman is pregnant with two or more babies (multiple pregnancy).
The Doppler flow study is a noninvasive test. The test doesn’t harm the baby or you.
You don’t need to do any special preparation before the test.
You will lie in a comfortable position on an exam table. A healthcare provider with special training does this test using a special ultrasound machine. Gel is put on your belly. This helps to send sound waves from your belly to the computer. The provider puts a device called an ultrasound transducer on your belly. It takes several minutes to check the flow in each blood vessel being tested.
The healthcare provider will talk with you about the results. If the test shows there is not enough blood flow, you may need other testing.
Before you agree to the test or the procedure for your child make sure you know:
Bayhealth is Southern Delaware’s healthcare leader with hospitals in Dover and in Milford. Bayhealth provides a wide range of medical services, including cardiovascular, cancer, orthopaedics and rehabilitation, pediatrics, respiratory care, sleep care, surgical weight loss and women’s services.