Doppler Scan

A Doppler scan, also known as a Doppler ultrasound, is a non-invasive imaging test that uses high-frequency sound waves to measure and evaluate blood flow through blood vessels. It helps detect abnormalities in blood circulation in arteries and veins in areas like the neck, arms, legs, abdomen, and even the umbilical cord during pregnancy.

Unlike a regular ultrasound that only shows structures and organs, a Doppler scan assesses how fast and in which direction blood is flowing. This is crucial for identifying conditions such as blocked or narrowed blood vessels, deep vein thrombosis (DVT), varicose veins, reduced blood flow to organs, and fetal health issues in pregnancy.

During the scan, a water-based gel is applied to the skin, and a handheld device called a Doppler probe or transducer is moved over the target area. The sound waves reflect off moving blood cells, and a computer converts them into graphs or color images.

Doppler scans are safe, painless, and typically take 20–30 minutes. They do not use radiation and are suitable for all ages, including pregnant women. The results help doctors diagnose vascular problems early and plan the right treatment.