Evaluation of spiral CT urography in the diagnosis of ureteral diseases

Objective To study the diagnostic value of spiral CT urography(SCTU) in ureteral diseases. Methods Spiral CT urography(SCTU) was performed in 35 cases with ureteral diseases, including 18 cases of ureteral calculus, 3 carcinomas, 1 polyp, 4 malformations,4 inflammations, 2 ureteral fistulas and 3 operating sequelas. In 35 cases, 22 also received intrave-nous urography(IVU). Results On SCTU, the location and diameter of 21 ureteral calculus(19 radiopaque, 2 radiolucent) and enlargement of renal pelvis and ureter were displayed local rarefication obstruction of contrast medium in ureter were detected in 3 tumor. 4 malformation with double renel pelvis and urter were demonstrated.The location and direction of 2 ureteral fistulas were notified. Conclusion SCTU is superiord to IVU and conventional CT in improving diagnostic accuracy of ureteral disease.