Urinary system examination under what circumstances to use CT examination

Urinary system examination, first of all, the size, location, orientation of the stones, as well as the shape of the urinary system, the degree of disease clear, it is best to do CT examination, like CT urography, can fully show the various parts of the urinary tract. Urinary system examination, first of all, it is best to check the size, position and orientation of the stones before surgery, so it is best to do a CT examination to clarify the various conditions of the stones and the shape of the urinary system and the extent of its lesions. General B-ultrasound cannot solve this problem. It is best to do CT examination, such as CTU, CT urography, which can fully reveal the various parts of the urinary tract and the extent of his lesions. Then there are some emergency patients, urinary stones sometimes see ponding, see this symptom, there is hematuria above, but B ultrasound can not see, this time can do CT examination, under CT can 100 percent diagnosis stones.