Lower Extremity Flow Study/Ankle Brachial Index (ABI)
What is a flow study?
A flow study is also called a physiologic ultrasound, an exam that uses sound waves and blood pressure cuffs to measure blood moving through a blood vessel. A lower extremity physiologic arterial ultrasound checks for problems with circulation (blood flow) in the arteries of your legs by comparing blood pressures and quality of blood flow in your arms and legs. Depending on your symptoms and your physical ability, You may be asked to walk for a short period of time on a treadmill.
An ultrasound tech will perform your exam by applying a gel directly to the skin on your legs and pressing an ultrasound camera along the legs to obtain the proper images.
How do I prepare?
Wear loose fitting pants and a loose fitting short sleeve shirt to your appointment.
No other preparation is necesary.