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How a Doppler Test Can Help You Diagnose Circulatory Disorders?

12th August, 2023

What is Doppler ultrasound?

The main purpose of Doppler ultrasound is to check blood flow in your body. This test helps to find whether there is any leakage, blockage or narrowing in a blood vessel. It is a noninvasive test. A regular ultrasound can’t produce the blood flow.  If you are looking for top cardiovascular diseases (CVD) hospitals in Kolkata, then you should keep a few factors in mind because a Doppler test on the leg is also done before heart bypass surgery.

A Doppler ultrasound helps in various ways:

1. Defective heart valve and congenial heart diseases

2. Blood clots

3. A blocked artery

4. Valves that are poorly functioning are supposed in your leg veins. It causes blood or other fluids to pool in the legs.

5. Venous occlusion

6. Bulging arteries

7. Venous reflux

8. Arterial occlusion from atherosclerosis

Utilizing the Doppler Effect, an ultrasound technique can gauge the velocity of blood flow by assessing changes in pitch (frequency). It assures whether a pulse is there or not. It can diagnose to manage PAD or Peripheral Arterial Disease. Doppler test is helpful before surgeries.  In the process of conducting a Doppler ultrasound, a skilled ultrasound imaging specialist, or sonographer, applies a small, handheld transducer, roughly the size of a bar of soap, onto your skin in the region under examination. The transducer is moved across different areas as required. Dopper test is highly recommended for cardiovascular disease treatments.

This examination serves as a non-invasive option compared to more intrusive methods like angiography, which entails introducing contrast dye into blood vessels for enhanced visibility in X-ray images.

Furthermore, a Doppler ultrasound examination can aid your physician in evaluating potential artery injuries and in monitoring specific treatments involving your veins and arteries.

A Doppler ultrasound records the echoes of sound waves that bounce off dynamic entities such as blood cells and traces their patterns of movement and flow.  

For an example,

Whenever a patient goes to any orthopedic for hip surgery, the doctors first do the Doppler test on their ankle.   

Does Doppler test hurts?

Generally, it is not. For most healthy people, it is painless. There is no risk.

What are the most recent advancements in ultrasound-based imaging?

The field of ultrasound-based artery imaging is rapidly evolving. The clarity of artery disease visualization achieved through duplex ultrasound surpasses that of MRI and CT angiograms. Moreover, duplex ultrasound offers the unique benefit of displaying both blood flow velocity and any turbulence. The velocity of blood flow serves as an indicator of artery narrowing, making Doppler ultrasound the superior choice for accurately assessing the severity of arterial narrowing and disease.

How is it performed?

The Doppler test is done in the radiology department in cardiovascular diseases (CVD) hospitals in Kolkata.

A waster-soluble gel is placed on the transducer. Transducer is a device. It produces high-frequency sound waves to the artery or veins.

Blood pressure cuffs put around various parts including different points of arms, legs, thigh, calf and ankle.  


Smoking just after test may harmful. Nicotine causes the arteries in the limits to constrict.   

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