Timely prenatal check-ups are an option to be responsible for the health of the baby and the mother-to-be. What kind of ultrasound would the mothers choose? The answer must be, of course, higher up. That is why simple ultrasound tests have plunged many mothers into the puzzle of what to choose: 2d, 3d or 4d. So, what choice should mothers make
What's the lottery
In order to be clear, it is necessary to start with the normal b-plus, which is commonly referred to as the "black-white" ultrasound, medically referred to as black-and-white-to-black ultrasound, with images of two-dimensional cipher images of dirty instruments or structures (square images, like photo effects), which can only be observed and diagnosed by medical professionals, generally as routine screening techniques。
The image of what is known as the color doppler ultrasound, which is known as the color doppler ultrasound, not only displays the face-to-face image of a dirty instrument or structure, but also uses the doppler principle to observe the blood flow of angiogenesis, such as whether the umbilical cord is around the neck of the foetus。
What's a 3d, 4d ultrasound
The so-called 3-d or 4-d ultrasound, medically known as real-time 3-d ultrasound, includes the function of 2-d ultrasound and colored doppler ultrasound, which is reconstructed by images of dirty instruments or structures using ultrasound instruments to form 3-d images of a stereo。
The addition of a 3-d, 4-d word to the top of the lottery does not mean that it has been upgraded to a “nobility version”. According to professional doctors, the three-dimensional colour is a 3-dimensional dynamic, and the four-dimensional colour is actually a real-time 3-dimensional reconstruction of the two-dimensional cross-section。
The difference between 3d and 4d is that in a time dimension, 3d is a picture and 4d is a video. For example, the four-dimensional lottery allows pregnant mothers to see a series of fetal movements, while doctors are able to judge the development of the foetus based on its movement。
3-d, 4-d is it more accurate
The idea is incorrect. The doctor states that at the time of the hospital examination, the pregnant woman is currently only a “pinning angle” for the screening of deformities, and that the doctor is still performing system deformities with a 2-dimensional colour supers and 3-d and 4-d are surface imaging based on 2-d, equivalent to pictures and videos of the baby. The main diagnosis of foetal malformations is still performed by a 2-dimensional ultrasound。
Images of 3d and 4d are produced later, not to say that the observed images are 3d and 4d, but that they are still observed in ordinary colour supervising, and are then converted from observed plane images to 3d and 4d three-dimensional images through the conversion software in the instrument, so that parents who do not know b superimages can see what the baby looks like。
Effectiveness of supplementary assistance
The primary purpose of systematic ultrasound for mothers in the middle and late stages of pregnancy is to screen the foetus for structural malformations, one of the standard prenatal ultrasound tests. Four-dimensional colours allow real-time observation of the dynamics of internal organs of the human body, allow multi-dimensional and multi-angular observation of the growth and development of the intrauterine foetus, provide a scientific basis for early diagnosis of congenital cardiac malformations and congenital cardiac diseases, and facilitate medical judgement. The four-dimensional colours also allow examination of the body of the foetus, such as lip fractures, spinal fractures, brain, kidneys, heart, bones, etc。
Is there a need for a four-dimensional ultrasound, or is the mother-to-mother to listen to the advice of a professional doctor? A four-dimensional ultrasound is usually recommended when a normal b ultrasound reveals foetal malformations, e. G., fetal lip fractures, abnormal foetal heart structure, etc., and can be better displayed with a four-dimensional ultrasound. In most cases, 3-d and 4-d ultrasounds are mainly used to assist and supplement 2-d ultrasounds。
The importance of choosing a regular hospital
It should be recalled that while the pregnancy b test is safer, this does not mean that it is free to do it throughout the pregnancy. Usually, the best time for pregnant women to do a four-dimensional coloring is 20-28 weeks of pregnancy, when the limbs of the foetus and the main organs of the body are fully developed and the water is better suited for foetal malformation screening. When you get pregnant between 1 and 2 months, you don't recommend a four-dimensional lottery。
Colour excess energy is greater than normal b, and exposure to the head or genital part of the foetus for prolonged periods of time would be relatively detrimental to the development of the foetus. For example, the mother and father wanted to see the baby's cute face through a four-dimensional lottery, but the baby might be moving in the stomach, and it might take minutes or 10 minutes to capture this moment. Super-b probes will stay at the same location for a period of time and may have thermal effects if the acoustic wave is concentrated in a fixed location for a long time. When this heat effect reaches a certain level, it may have adverse effects on human tissue and affect the substance within the cell. In view of the protection of the foetus, it is recommended that the mother-in-law must go to the regular hospital, where a specialist is required to perform super-operation b。
