Ultrasound is a technique that sends sound waves into the human body and records the returning echoes as images of the body’s internal organs and fluids. No radiation is used.
Vascular ultrasound specifically provides pictures of the body’s veins and arteries.
A Doppler ultrasound study may be part of a vascular ultrasound examination. Doppler ultrasound is a special ultrasound technique that evaluates the speed or rate at which blood flows through a blood vessel.