Doppler Ultrasound


Doppler ultrasound is the imaging study of the blood circulating in the blood vessels using sound waves. These sound waves are reflected off moving objects, such as, in this case, red blood cells.

The main difference with normal ultrasounds is precisely the possibility of observing blood movement.

Some types of Doppler ultrasounds are:

  • Color Doppler
  • Power Doppler
  • Spectral Doppler
  • Continuous wave Doppler

Doppler ultrasound is used for the diagnosis of some heart diseases and to study blood circulation and if there is any obstruction in the blood vessels.

Also, in the case of pregnant women, it is a very useful test as it allows the circulatory status of the fetus to be visualized.


As with a regular ultrasound, Doppler ultrasound does not use radiation, hence its use by pregnant women and children. In addition, it can also be repeated as many times as necessary.

These ultrasound scans do not require preparation on the part of the patient.

With regard to clothing, it is preferable to wear comfortable clothing that allows you to easily expose the body area to be explored.

During the scan, ultrasonic gel is used to prevent air from getting between the ultrasound source transducer and the skin. The ultrasonic gel is water-based and easy to remove after the scan.

Doppler ultrasound is painless. In some cases, the passage of the transducer may be uncomfortable due to the slight pressure required.

These ultrasounds may take a little longer to perform than regular ultrasounds. Usually its duration varies between 30 and 60 minutes.

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