How many weeks is the best time for 4D color Doppler ultrasound

Four-dimensional color ultrasound is a very clear B-ultrasound. If you need to do a four-dimensional color ultrasound, you must choose the right time to do it. In this way, the four-dimensional color ultrasound you get will be clearer and more valuable. So how many weeks is the best time to do four-dimensional color ultrasound? If you don’t know, just read the article.

1. When is the best time to do 4D color Doppler ultrasound?

The best time to take a four-dimensional color Doppler ultrasound is during the 24th to 28th week of pregnancy, because the fetus's brain is developing rapidly around the 24th week. The fetal structure at this stage has been formed, the size of the fetus and the amniotic fluid are moderate, the activity space in the uterine cavity is large, the echo effect of the fetal bones is relatively small, and the image is clearer.

The best time to do four-dimensional color ultrasound varies from person to person, and the results obtained will be different if the requirements for doing four-dimensional color ultrasound are different. Generally speaking, pregnancy can be divided into three stages: early pregnancy from January to March, mid-pregnancy from March to June, and late pregnancy from June to September. The actual effects of the four-dimensional color ultrasound taken in these three stages are also different. Due to individual differences among pregnant women, please contact your doctor for your specific time and set the time according to the doctor's instructions.

1. To take a full-body picture of the fetus: You can choose to do a four-dimensional color ultrasound in the early stages of pregnancy. At this time, the fetus is still small, and the whole body can be photographed through instruments, but it is not recommended to do a four-dimensional color ultrasound in the early stages of pregnancy to avoid adverse effects on the fetus.

2. To check for external defects of the fetus: At this time, you can choose to do a four-dimensional color ultrasound in the middle or late pregnancy. At this time, the fetus's body has developed to a certain extent, and it is impossible to take a whole body photo, but you can observe the shape of a certain part of the fetus.

2. Four-dimensional color Doppler ultrasound in 6 months of pregnancy

In terms of the timing of four-dimensional color ultrasound, the best time is after 20 weeks of pregnancy, because at this stage the basic growth and development of the fetus has been completed, and the size of the fetus and the amniotic fluid flow of the pregnant woman herself are suitable for four-dimensional color ultrasound. Performing four-dimensional color ultrasound at this time can ensure that there is enough space in the uterus for the fetus to move, and the pictures obtained are also clearer.

There are even many experts who think it is more appropriate to do it between 24 and 28 weeks of pregnancy. The main reason is that the fetus's brain develops fastest around 24 weeks of pregnancy (six months), and the fetal structure at this stage has already formed and the image is clearer. But sometimes the time for doing four-dimensional color ultrasound should be chosen according to the specific situation of the pregnant woman, so that the development status of the fetus in the uterine cavity can be grasped as soon as possible.