Doppler ultrasound is an imaging test that uses high-frequency sound waves to create images of how blood is flowing through blood vessels. Doppler ultrasound works by measuring sound waves that are reflected off moving objects, such as red blood cells. This is called the Doppler Effect. If there is decreased blood flow to the arteries or veins of the arms, legs, or neck, a Doppler ultrasound is usually recommended by the physician.
What is the purpose of Doppler ultrasound?
Doppler ultrasound is used to check a person’s blood flow, especially when there are suspected blockages or other irregularities. Doppler ultrasound results help determine the condition of a patient’s arteries and veins. Doppler ultrasound can be used to check for the following:
1. Loss of a blood vessel.
2. Irregularity in heart structure.
3. Diagnosis of certain heart conditions.
4. Blockages in blood vessels, such as deep vein thrombosis (blood clot in a deep vein in the leg)
5. Hardening and narrowing of blood vessels, which can block blood flow to the legs and feet.
6. Superficial thrombophlebitis (inflammation of a vein under the skin of the feet)
7. Thromboangiitis obliterans (a rare disease leading to swelling of the hands and feet)
8. Vascular tumor in the legs (a soft tissue growth that forms in blood vessels or lymphatic vessels)
9. Changes in heart function, often with an electrocardiogram
10. Changes in blood flow after surgery.
11. Changes in blood flow during pregnancy or to the fetus
The benefits of Doppler Ultrasound
There are no known risks associated with Doppler ultrasound. It does not use radiation and is, therefore, a safe procedure for pregnant women and unborn children as well.
1. Better than some invasive diagnostic procedures.
2. You can resume your normal activities soon after the Doppler ultrasound.
3. Usually, there are no specific instructions that need to be followed after a Doppler ultrasound.
4. The exam is painless, but you may feel pressure at the points where the transducer needs to be pressed into the skin.
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