What is the difference between 3D and 4D color Doppler ultrasound?

As we all know, when mothers do prenatal check-ups, they usually do B-ultrasound. With the development of technology, B-ultrasound is now widely used in prenatal check-ups, such as three-dimensional and four-dimensional color ultrasound. What is the difference between four-dimensional color ultrasound and three-dimensional color ultrasound? What is the difference between three-dimensional and four-dimensional color ultrasound? The comparison must be confusing to many mothers. Today, the editor will answer your questions and resolve your doubts.

What is the difference between 4D and 3D color Doppler ultrasound?

In fact, B-ultrasound is not always colorful. B-ultrasound is still black and white, and only three-dimensional and four-dimensional color ultrasounds can be beige when producing three-dimensional and four-dimensional images. It is often called B-ultrasound because the heart, blood and other indicators are indicated in colorful colors. The resolution of B-ultrasound is relatively higher than that of ordinary black and white B-ultrasound, so more doctors prefer to use B-ultrasound to perform more detailed examinations. And because the blood is marked with different colors, when the umbilical cord of the fetus is around the neck, you can see U-shaped or W-shaped blood on the baby's neck, which makes it easy to tell whether the umbilical cord of the fetus is around the neck.

Three-dimensional color ultrasound and four-dimensional color ultrasound do not mean that the images observed are three-dimensional or four-dimensional. They are just converted in the later stage. They are still observed with ordinary B-ultrasound, and then the observed two-dimensional images are converted into three-dimensional or four-dimensional stereoscopic images through the conversion software in the instrument. In fact, in terms of the diagnostic significance, 3D color ultrasound and 4D color ultrasound are not at all more helpful for diagnosis, but people who don't understand B-ultrasound images can also see a little bit. The significance of three-dimensional and four-dimensional color ultrasound is that they can observe the dynamic movement images of the growth and development of the fetus in the uterus in real time.

The difference between 3D color ultrasound and 4D color ultrasound lies in the blocking of the time dimension parameters. In other words, 3D color ultrasound is a photo, and 4D color ultrasound is a video, which allows pregnant women to see a series of movements of the fetus.

Four-dimensional color ultrasound is dynamic, while three-dimensional color ultrasound is static, so four-dimensional color ultrasound will look clearer at a glance. Three-dimensional color ultrasound is only a picture at a certain point in time, while four-dimensional color ultrasound can make a series of movements into multimedia. In terms of the effectiveness of screening for fetal malformations, three-dimensional color ultrasound and ultra-high-definition four-dimensional color ultrasound have the same effect, but ultra-high-definition four-dimensional color ultrasound is more accurate.