To define the optimal methods of diagnosis of ureteral injury from blunt abdominal trauma, the intravenous urography and retrograde pyelograph were used for the earlier diagnosis of ureteral injury.

• 为了提高对腹部钝性伤所致闭合性输尿管损伤的早期诊断,采用大剂量静脉肾盂造影或逆行造影。