1.Objective To evaluate the diagnostic efficacy of the reformatted unenhanecded spiral CT of ureter for ureterolithiasis.

1.目的增强螺旋CT输尿管重建对输尿管结石诊的值。

2.To study the ultrasonographic features and the clinical value of dropsy under capsula fibroso associated with acute ureterolithiasis.

2.探讨输尿管结石急性梗阻伴肾积液的声像表现及其临床意义。