What is the difference between CT and color Doppler ultrasound in urinary system?

The difference between CT and color Doppler ultrasound of urinary system lies in the principle of inspection is different, Ct examination can be layered to see, B ultrasound can be observed in multiple directions, and the resolution of color Doppler ultrasound is higher than B ultrasound, each other's shortcomings are different, B ultrasound examination due to ultrasound by gas interference is very large, for the intestinal tract and gas more organ inspection rate is relatively low. Moreover, clinical applications are also different. CT examination can show clear structure, so it is necessary to choose which method to examine according to its own specific situation.