What is a Doppler study?
A Doppler study is a special type of ultrasound that shows how blood is flowing through vessels — its speed and direction — rather than just their shape. Dr. Chandak uses it to check blood flow in a variety of situations.
Why is a Doppler study done?
- To check blood flow to the baby in higher-risk pregnancies
- To evaluate varicose veins
- To look for a blood clot, such as in deep vein thrombosis (DVT)
- To assess blood flow in the neck (carotid) or kidney arteries
How to prepare
Generally, no special preparation is needed. If your scan is for a specific area, the clinic will let you know if anything different is required.
What happens during the scan
Gel is applied and a probe is moved gently over the area being checked. The screen shows blood flow as colours or wave patterns, which the doctor interprets. The scan is painless and usually takes 15 to 30 minutes.
What happens after the scan
There is no downtime — you can resume normal activity right away.
Is a Doppler study safe?
Yes. It uses sound waves, not radiation, and is considered safe, including during pregnancy.
Frequently asked questions
No, it is painless, just like a regular ultrasound.
It checks whether enough blood is flowing to the baby, which is especially important to monitor in higher-risk pregnancies.
A regular ultrasound shows the shape and structure of organs. A Doppler study specifically shows how blood is moving through vessels.
Usually none, though the clinic will tell you if your specific scan needs anything different.