Clinical Value of CTU in Urinary Tuberculosis

Objective: To explore the value of CT urography (CTU) on diagnosis of urinary tuberculosis. Methods: A retrospective analysis was carried out in TB patients clinically confirmed whom had underwent CTU or IVP, image data were compared with pathological findings. Results: 79 cases were included in the study. CTU examination revealed 46 cases of positive diagnosis in 50, 13 cases of positive diagnosis were found in 29 cases of IVP examination. The diagnosis accuracy of CTU is higher than that of IVP. CTU signs of urinary tuberculosis are: multiple or single round hypodense in renal parenchyma, renal calcification, uneven caliectasis, urothelial thickening and "beaded" change, bladder contracture. Conclusion: CTU can accurately reflect the different pathological changes of urinary tuberculosis. It can be used as first-line screening tool, especially for patients with poor renal function or whose IVP with poor developing, to provide more diagnostic information.