A Colour Doppler is a noninvasive test that can be used to evaluate the blood flow through your blood vessels by bouncing high-frequency sound waves (ultrasound) off circulating red blood cells.
A Colour Doppler may help diagnose many conditions, including:
There is no known risk of a Colour Doppler scan. It does not harm the blood vessels, heart, brain, uterine structures or the fetus in anyway. Colour Doppler scan is, by far, a safe technique used as an alternative to more invasive diagnostic tools.