Diagnostic Value of 64-slice Spiral CT Urography in Congenital Ureteral Diseases

Objective To explore the diagnostic value of 64-slice spiral computed tomography urography(MSCTU) in congenital ureteral diseases. Methods We collected 36 cases of congenital ureteral diseases with complete clinical data in 2 years,performed all examinations by using a 64-slice spiral CT,the volume data were reconstructed in work station(Vitrea 2) with the techniques of multiple plane reformation(MPR),curved planar reconstruction(CPR),maximum intensity projection(MIP)and volume rendering(VR). Results The ureter congenital variations and deformities were diagnosed by MSCT in 36 cases including 18 cases of congenital ureter stenosis,8 of duplication of renal pelvis and ureter,2 of retrocaval ureter,5 of hyterotopia ureterocele,2 of congential megaureter and one of ectopic ureter. All cases were confirmed by surgery,ureteroscopy and cliniccal approches. Conclusion With three-dimensional reconstruction technique(MPR,CPR,MIP and VR),MSCTU can clearly demonstrate the anatomy shape and the etiologic type of ureteral diseases,which has obvious advantages in the diagnosis of congenital ureteral diseases.