The difference between 3D and 4D color ultrasound

The main differences between 3D color ultrasound and 4D color ultrasound in medical imaging technology are reflected in the following aspects: 1. **Display Method**: 3D color ultrasound primarily provides static, three-dimensional images, whereas 4D color ultrasound adds the dimension of time, enabling real-time acquisition and display of dynamic fetal movements, making observation more intuitive and continuous. 2. **Accuracy**: Due to its real-time and dynamic capabilities, 4D color ultrasound offers higher accuracy in diagnosing fetal abnormalities and observing fetal movements, thereby reducing the likelihood of missed diagnoses. 3. **Cost**: Generally, 4D color ultrasound is slightly more expensive than 3D color ultrasound due to its more advanced technology. However, specific pricing varies depending on the hospital and region. 4. **Application Scope**: Both techniques are widely used in obstetric examinations, but 4D color ultrasound also demonstrates unique advantages in areas such as the diagnosis of heart diseases.