CT对闭合性肾损伤的诊断

CT Diagnosis of Closed Renal Trauma

目的：探讨CT检查在闭合性肾脏损伤中的作用。方法：回顾性分析1986年-2008年21例闭合性肾脏损伤患者CT资料。结果：CT显示肾挫伤13例,未累及集合系统的轻微肾裂伤5例,肾脏深部裂伤或碎裂伤3例,未见累及肾蒂者,其中3例分别合并脾脏破裂（2例）和肝脏破裂（1例）。结论：CT是急性闭合性肾脏损伤首选的影像学检查方法,结合常规增强扫描,可做出准确诊断。

Objective：To investigate the value of computed tomography（CT） in the diagnosis of closed renal trauma.Methods：21 patients with closed renal trauma were collected during 1986 to 2008,and their CT images were analyzed retrospectively.Results：Renal injury could be classified into 4 types based on CT findings： renal contusion in 13 patients,mild laceration without involving the collecting system in 5 patients,deep corticomedullary laceration or shattered kidney with or without urinary extravasation in 3 patients.There was no involvement of renovascular pedicle,but 2 had combined rupture of spleen and 1 hepatorrhexis.Conclusion：CT is the first choice of imaging method for closed renal trauma,and accurate diagnosis can be made in combination with the conventional enhanced scan.