Diagnosis of multislice spiral CT in ureteral polyps / 实用放射学杂志

ABSTRACT

Objective To investigate the diagnostic value of multislice spiral CT (MSCT)in ureteral polyps by multi-phase enhanced scan. Methods Seven cases of ureteral polyps confirmed by operation and pathology were retrospectively analyzed,including 5 fibro-epithelial polyps and 2 inflammatory polyps.All of the patients underwent MSCT multi-phase enhanced scan.Thin slice reconstruction,three-dimensional post processing including maximum intensity projection (MIP),multi planar reconstruction (MPR)and volume reconstruction (VR) were performed for each phase data.Results The fibro-epithelial polyps were more common in the young men.Their longitudinal diameters were significantly greater than the transverse diameters.The shapes were cordal,papillary,or columnar.They were not enhanced obviously in the arterial phase,however,enhanced obviously in the delayed phase.Inflammatory polyps were more common in adults and all of them were accompanied with stones.Their longitudinal diameters were slightly greater than the transverse diameters,and the shape was spindle.The margins were unclear with cord changes.The upper and lower ureters showed extensive thickening of the wall.These polyps were significantly enhanced in the arterial phase and further strengthened in the delayed phase.Conclusion The morphology and dynamic enhancement characteristics of ureteral polyps can be displayed and clearly diagnosed by MSCT.