非增强螺旋 CT 输尿管重建诊断输尿管结石

目的：评价非增强螺旋CT输尿管重建对输尿管结石诊断的价值。方法：39例患者，行腹盆部非增强螺旋CT扫描。输尿管成像方法为选取冠状面进行曲面重建。结果：39例输尿管成像均清楚地显示输尿管全程，其中33例示结石位于输尿管腔内同时显示结石大小、形状、位置和输尿管梗阻扩张程度及范围。非结石6例，输尿管成像清楚地显示输尿管及其周围组织结构，有助于鉴别诊断。结论：非增强螺旋CT输尿管重建可获得良好的输尿管成像，在输尿管结石诊断和鉴别诊断方面具有重要的临床价值。

Reformatted nonenhanced spiral CT of ureter for ureterolithiasis

Objective To evaluate the diagnostic efficacy of the reformatted unenhanecded spiral CT of ureter for ureterolithiasis. Methods 39 patients were examined using nonenhenced spiral CT from the top of the kidneys to symphysis pubis in a single breath hold. The postprocessing method used in our studies was curved planar reformatting(CPR). Results Reformatted CT displayed clearly the entire course of ureter in all 39 cases . The diagnosis of ureterolithiasis was made on CPR views by definitive demonstration a calculus actually within the ureter, including the stone size, shape, location and the obstruction degree of ureter in 33 patients. The CPR views also demonstrated the ureter and the structures around clearly to aid greatly in differentiating the other 6 cases miscellaneous urinary tract conditions. Conclusion Our findings suggest that the reformatted nonenhanecded spiral CT of ureter has potential as an imaging tool for the ureterolithiasis and other urinary tract abnormalities.