Is four-dimensional photography legal?

Four-dimensional photography refers to the use of four-dimensional color Doppler ultrasound technology for photography. Four-dimensional color Doppler ultrasound can be called four-dimensional color Doppler ultrasound, which can obtain three-dimensional images in real time, surpassing the limitations of traditional ultrasound. It can display the three-dimensional structure and dynamics of human organs intuitively and stereoscopically, observe the three-dimensional structure of human body in real time, and observe the growth and development of intrauterine fetus from multiple directions and angles, providing accurate scientific basis for early diagnosis of fetal congenital body surface malformation and congenital heart disease. According to the Law on Maternal and Infant Health Care and the Measures for the Administration of Prenatal Diagnosis Technology, prenatal diagnosis can only be carried out by qualified professionals in medical institutions approved by health authorities. As a prenatal diagnosis technology, four-dimensional photography is legal in qualified medical institutions.