Arterial and Venous Doppler
This is a form of ultrasound that uses sound waves to evaluate the normal or abnormal blood flow throughout the arteries and veins of the lower extremities. These tests will detect narrowing or blockages in these vessels, the generalised location and severity of any arterial blockages, or the presence of blood clots in deep veins.
The most common reason for a venous ultrasound exam is to search for blood clots, especially in the veins of the leg. This condition is often referred to as deep vein thrombosis or DVT. These clots may break off and pass into the lungs, where they can cause a dangerous condition called pulmonary embolism. If the blood clot in the leg is found early enough, treatment can be started to prevent it from passing to the lung.