An arterial doppler is an ultrasound investigation used to visualize the blood vessels of the arms and legs.
The scan involves scanning of the blood vessel to see if there is any narrowing of the blood vessels and to see if there is any reduction of the blood flow.
Reduced blood flow to the legs may cause pain in the calves when walking short to medium distances and the pain is usually resolved by rest. In severe cases the pain might be felt even when at rest and in some cases a patient might develop sores on the feet or even gangrene.
With the information gathered from the duplex doppler the doctor can get an idea of the level of the disease and therefore can decide if there’s a need for an operation and the possible type of an operation or if medication is required.