Objective: To explore the diagnostic value of magnetic resonance urography (MRU) in ectopic ureters.
Methods: Seventeen female children with ectopic ureter were examined by sonography, intravenous urography (IVU), computer tomography (CT), MRU and so on. The mean age of the female children was 4.5 years (7 months approximately 12 years).
Results: Seventeen patients were examined by sonography, including 3 dysplasia little kidneys, 1 kidney absence, 12 duplex kidneys with hydroureter, 1 normal.Seven patients were examined by IVV, including 3 hydronephrosis and 4 no image or not clear. Fourteen patients were examined by CT, including 3 dysplasia little kidneys, 11 duplex kidneys with hydronephrosis. Five were determined by cystoscope, including 2 ecto-pic urethral orifices which angiography could only display the expansion of ureter. All children were diagnosed by MRU and an accurate anatomical picture of the entire urinary tract was obtained.
Conclusion: To accurately and noninvasively depict the urinary tract and the independence of renal function, MRU may be used for patients with ectopic ureter undiagnosed with sonography and IVU.
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