The fourth dimension of "four-dimensional color ultrasound" refers to the time vector, so it is also called real-time three-dimensional color ultrasound. For ultrasound, "4D" (abbreviation for "four-dimensional") ultrasound technology is a revolutionary breakthrough in the color Doppler ultrasound industry. 4D ultrasound technology is 3D ultrasound images plus time dimension parameters. This revolutionary technology can obtain three-dimensional images in real time, surpassing the limitations of traditional ultrasound. It provides a wide range of applications including abdominal, vascular, small parts, obstetrics, gynecology, urology, neonatology and pediatrics. Compared with other 3D ultrasonic diagnostic processes, the four-dimensional color Doppler ultrasound diagnostic instrument enables doctors to observe the dynamic movement of internal organs of the human body in real time. For example, doctors can judge the development of the fetus according to the movement of the fetus, and the accuracy of puncture under the guidance of ultrasound can be improved by observing the three-dimensional plane movement of the puncture needle.
The four-dimensional color ultrasound diagnostic instrument can automatically take "photographs" and dynamic videos for the fetus in the womb, adding peace of mind and fun to many expectant mothers. They no longer just feel the baby's breathing and movement, but can witness their every move and cute face. And can make the baby's appearance and action into photos or VCD. More importantly, the four-dimensional color Doppler ultrasound diagnostic instrument can observe the growth and development of the fetus in the uterus from multiple directions and angles. In the past, B-ultrasound equipment could only check the physiological indicators of the fetus, but the four-dimensional color Doppler ultrasound has real-time three-dimensional imaging function and high resolution, and can carry out systematic antenatal fetal abnormality screening on the fetus, such as facial deformities, nervous system deformities, internal organ structural lesions , congenital heart disease, lethal achondroplasia, etc., in order to treat as soon as possible, or consider whether to terminate the pregnancy. In addition, the excellent ergonomic design of the four-dimensional color Doppler ultrasound diagnostic instrument does not have radiation, light waves, and electromagnetic waves, and has no impact on human health.
The best time for four-dimensional color Doppler ultrasound examination:
1. Four-dimensional color Doppler ultrasound can be done at any pregnancy week, and the best time is (22-24) weeks.
2. After the 16th week of pregnancy, the limbs and major organs of the fetus have fully developed. The best time to check is close to 24 weeks, and the amount of amniotic fluid is more suitable for fetal abnormality screening.
Four-dimensional color Doppler ultrasound inspection content:
1. Early and middle pregnancy 11-14 gestational weeks inspection items: fetal head and intracranial structure, face, neck, four-chambered heart, stomach, bladder, abdominal wall and umbilical cord attachment, spine, limbs.
2. 22-24 weeks of pregnancy inspection items: head: skull, brain, brain midline, lateral ventricle, medulla cistern. Face: Lips. Heart: Four-chamber view. Spine: The direction and alignment of the vertebrae. Abdomen: integrity of abdominal wall, liver, stomach, kidneys, bladder. Limbs: long bones (excluding the number of hands, feet and fingers and toes), fetal umbilical cord structure and its attachment site.
