The whole process of four-dimensional color ultrasound examination

Many pregnant women's examinations will include four-dimensional color ultrasound examinations. Because pregnant women have never had a four-dimensional color ultrasound, they do not understand the process of the four-dimensional color ultrasound examination and whether they need to make some preparations for the examination in advance. Below I will tell pregnant women about the whole process of the four-dimensional color ultrasound examination and some things that need to be done before and after the examination. Pregnant women can learn about it. Knowing the content of the four-dimensional color ultrasound examination will not cause psychological anxiety.

Book in advance

Before doing four-dimensional color ultrasound, pregnant women should go to the hospital to make an appointment in advance. Firstly, there are many people doing the examination, and secondly, the best time for four-dimensional color ultrasound is 24-28 weeks of pregnancy. If the gestational age is too small or too large, the results of fetal malformation detection will not be so accurate.

No need to fast or hold urine Before the four-dimensional color ultrasound, pregnant women do not need to fast or hold urine, just check on time.

Please note that on the day of the examination, pregnant women should wear separate tops and pants, and avoid dresses or jumpsuits, to facilitate inspection.

2. Inspection Process

1. After entering the color ultrasound room, the pregnant woman should lie flat on the examination bed, exposing her belly for examination by the doctor.

2. If during the examination, the fetal face or other parts cannot be seen clearly due to the fetal position or other reasons, the expectant mother should move around for a while under the doctor's advice before continuing.

3. The doctor will examine very carefully during the examination, which normally takes 30 minutes, but the time required may vary depending on the situation of each expectant mother. Therefore, pregnant women should not be nervous during the examination to avoid affecting the normal activities of the fetus and interfering with the examination results.

1. The results of four-dimensional color ultrasound are usually available on the same day. Therefore, after the examination, pregnant women should wait for the test results in the waiting area under the arrangement of medical staff.

2. After receiving the test results, pregnant women should pay attention to the following matters:

(1) If certain parts do not show good results, you can check again within the next 2-4 weeks.

(2) Due to the influence of factors such as fetal position, amniotic fluid, and maternal body, the four-dimensional color ultrasound examination cannot show clearly. Therefore, the report will explain which structures are not clearly displayed. If the expectant mother finds this situation, she can consult the doctor whether it is necessary to do it again.

(3) Due to the limitations of ultrasound technology, it is not possible to detect all fetal malformations. For example, the fetal ears, gender, genitals, number of jaw arches, finger bones, and phalanges, as well as 50%-60% of congenital heart diseases of the fetus are not within the scope of ultrasound examination.

Four-dimensional color ultrasound is an instrument made using the principle of ultrasound. It creates images through ultrasound transmission rather than using radiation, light waves, electromagnetic waves, etc. Therefore, there is no radiation from radiation, light waves, electromagnetic waves, etc., and it has no effect on the fetus.

Note: Although four-dimensional color ultrasound has no effect on the human body, if the examination time is too long, the ultrasound waves will be fixed in one place for a long time, which is easy to produce thermal effects and may affect the chromosomes of the fetus. Therefore, pregnant women should pay attention to the examination time not being too long.