Patient's question:
NoDoctor's answer:
Hello, color Doppler ultrasound is a type of B-mode ultrasound. The performance of color Doppler ultrasound is significantly better than that of conventional B-mode ultrasound. It has stronger sound intensity and higher image quality. This is because people discovered that B-mode ultrasound can differentiate the oxygenation level of hemoglobin, creating a contrast between bright and dark areas. To enhance the color difference, a standard was artificially established: oxygen-rich blood is labeled red, while relatively oxygen-poor blood is labeled blue. This is what we commonly refer to as color Doppler ultrasound.