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Applications And Need Of Doppler Ultrasound Test

Doppler ultrasound, or simply Eco Doppler, is one of the types of ultrasound that, based on the use of ultrasound, uses the Doppler effect.

In the case of ultrasound, the sound waves leave the ultrasound through the transducer, and bounce off the moving blood, generating different waves depending on the direction and speed of the blood flow. When the blood approaches the ultrasound the frequency will be higher and when it moves away less, this alteration in the ultrasound waves is interpreted by the ultrasound and it assigns a specific colour for each frequency, red, blue and yellow.

Through this method and thanks to this physical principle of sound waves, it is possible to evaluate the flow of vascular structures of any part of the body, being able to determine its existence, its speed and direction of flow.

Why is it important to perform a doppler ultrasound?

The Doppler ultrasound allows to know the amount of blood flow circulating through cavities and veins baby. Its importance is that its results can tell you how much blood is pumped with each beat, thus determining the good state of the baby's heart, in addition to corroborating that the blood is reaching the foetus correctly, and with it the oxygen and the nutrients

But not only important is that sense. Its realization can help detect cardiac malformations in the foetus, problems with the umbilical cord and placenta, so that you and your gynaecologist begin to act quickly, or you can simply rule out these types of problems and make sure that your baby will be born healthy.

When do you have to have a Doppler ultrasound?

This test is usually done to all pregnant women in the third trimester, starting at the 25th week of pregnancy. However, Doppler ultrasound is a non-mandatory quarterly test, which can also be done in the first and second trimesters if the gynecologist considers it necessary.

The cases in which the doctor can recommend you to do this ultrasound are the following:

In case it is suspected that there is a growth delay in the foetus. In this circumstance the doppler ultrasound is very useful to control that the baby receives blood, oxygen and nutrients correctly. In addition, it will also help to know if there are significant blood disorders to anticipate the time of delivery or to predict whether there will be a premature delivery.

If your pregnancy is listed as a risk pregnancy it is recommended that you have an ultrasound of this type in each trimester of pregnancy.

If you suffer from hypertension, what is known as preeclampsia, or you have circulatory problems in the veins. In these cases, if you decide to have this test, you will rule out that your problems are affecting the correct development of the baby.

In the case of heart disease, Doppler ultrasound also works, as you can see if this problem can affect the growth of your baby. This test is performed with the accompaniment of an echocardiogram.

If you plan to go through surgery, Doppler ultrasound is also necessary, since thanks to the study of the flow of the area to be operated you can see if there will be complications a priori.

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