How to make an appointment for four-dimensional color Doppler ultrasound in Ningbo?

Siwei needs to make an online appointment in advance. Four-dimensional color Doppler ultrasound is one of the most advanced ultrasound examination methods so far, which greatly improves the accuracy of medical imaging, has a wide range of applications and high cost. It mainly acts on human tissues and organs through high-frequency ultrasound examination, and shows different presentation signals according to the absorption of sound waves by different tissues and organs, thus distinguishing the corresponding tissues and organs.