RESUMO
Bilateral megaureters can present as asymptomatic or symptomatic pathology in the form of flank pain or urinary tract infection. The entity can also be diagnosed in antenatal ultrasound scan. We present 12-year old male child who presented with both flank vague pain and was subjected to ultrasonography (US) and Magnetic Resonance Urography (MRU). There was no evidence of any reflux or obstruction noticed as uretero-vasical junctions were normal on both sides. He was diagnosed as a case of bilateral primary non obstructive megaureters. Base line study was carried out by non radiation modalities in our institute for further follow up.
RESUMO
Objective To discuss the inspect technique and methods of magnetic resonance urography(MRU)in pediatric urinary system. Methods 16 cases with urinary system diseases were analyzed retrospectively,including axial routine FRFSE T2WI with fat saturation and three-dimensional MRU. The three-dimensional(3D) imaging data were sent to AW4.2 workstation,then edited and reconstructed with maximum intensity projection(MIP) and rebuilt. Results 12 cases in 16 cases were congenital abnormality by MRU diagnosis,3 cases were Urinary system diseases and 1 case was normal. 10 cases in 16 cases were performed with surgical intervention,6 cases with medical treatment,which clinical diagnosis were consistent with MRU. 16 cases were accepted examination with B -ultrasonic,6 cases CT and 9 cases IVP. Diagnose accordance rates with MRU were B-ultrasonic 93.7%(15/16),CT 66.7%(4/6),IVP 66.7%(6/9).Conclusion MRU is a safe,convincible and convenient technique,which can provide high quality imaging,so it will be a kind of non-injury imaging method in diagnosing the diseases of pediatric urinary system diseases.
RESUMO
Objective To discuss the value of MRI in clinical diagnosis.Methods Images between CR excretory urography and MRU were compared,which came from the results of 36 cases who were examined by both CR and MRU.Results The spiral MRU images were better than those of the CR excretory urography,and at the same time,the relationship between the parenchyma of the renal,renal pelvis,ureter,bladder and the urinary organs and adjacent tissues were displayed clearly.Conclusion The scanning time of MRI is shorter.The machine can not only reconstruct powerfully but also work out better images,and the result is better than MRI which can't detect pathological changes in detail in its images.Therefore MRI can be replaced by MRU if the higher cost can be afforded.[Chinese Medical Equipment Journal,2008,29(2):80-81]