Is B-ultrasound an ultrasonic wave?

B-ultrasound is one of the most important technologies in modern medical examinations. The emergence of B-ultrasound has solved the diagnosis problems of many difficult and complicated diseases, helped doctors quickly find the crux of the problem, and laid a solid foundation for precise treatment. Although B-ultrasound is very useful, most people are not clear about its basic principles. For example, is B-ultrasound ultrasonic? Let’s take a look at the explanation below, I hope everyone can understand it.

B-ultrasound, also known as ultrasound, is divided into two different categories: black and white and color. It is a type of ultrasonic examination. It is a method to diagnose pregnancy without surgery. The difference in barriers will result in different echoes. Doctors use computers to collect all these echoes, and then use certain technologies to convert them into corresponding images on the computer.

principle

The principle is very simple, which is to emit ultrasonic waves into the human body. Ultrasound is a special kind of sound that has strong penetrating power and will produce an echo if it hits a barrier. The difference in barriers will result in different echoes. Doctors use computers to collect all these echoes, and then use certain technology to convert them into corresponding images on the computer.

How to choose B-ultrasound?

In fact, two-dimensional B-ultrasound is the main means of prenatal examination throughout the pregnancy, while three-dimensional or even four-dimensional color ultrasound can only be used as an auxiliary means, such as when the doctor cannot accurately judge the condition of the fetus.

Early pregnancy

Because color ultrasound radiation is greater than black and white B-ultrasound, doctors usually perform ordinary B-ultrasound in the early stages of pregnancy to determine the condition of the fetus. Since ultrasound radiation in early pregnancy has a greater impact on the fetus, doctors generally do not let pregnant women do it multiple times. The fewer times in early pregnancy, the better.

Second trimester

If necessary to confirm the fetal blood flow and whether there are major malformations, color Doppler ultrasound can be performed at this time.

Late pregnancy

B-ultrasound is required to check the intrauterine development of the fetus and to rule out fetal anomalies. Generally, there are no restrictions on color photos, and pregnant women can choose as needed.

Ultrasound examinations during pregnancy can reduce the number of neonatal deaths and also play a very important role in the eugenics advocated by the country. Generally speaking, if there are no abnormalities during pregnancy, the number of B-ultrasounds should be controlled within 4 times.