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Year : 2015  |  Volume : 4  |  Issue : 1  |  Page : 186

Agreement between static magnetic resonance urography and diuretic renal scintigraphy in patients with ureteropelvic junction obstruction after pyeloplasty

1 Departments of Urology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
2 Department of Radiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
3 Department of Radiology, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

Correspondence Address:
Fatemeh Ghassami
Department of Radiology, Alzahra Hospital, Isfahan University of Medical Sciences, Isfahan
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Source of Support: Nil, Conflict of Interest: None declared.

DOI: 10.4103/2277-9175.164005

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Background: Ureteropelvic junction obstruction (UPJO) is the most common cause of hydronephrosis within childhood that usually treat by surgery. According to anatomical variations in different individuals, scheduling similar procedures for all patients is not suitable, and thus the best decision for an appropriate surgical technique should be considered separately for each patient. Regardless of the type of applied technique, creating a funnel-shape UPJ with a suitable size is a successful treatment. In this context, the assessment of a successful surgical treatment in a short-term follow-up means repairing revealed anatomical defects. The present study aimed to compare the diagnostic value of static magnetic resonance urography (MRU) and diuretic-based renalscintigraphy (DRS) in patients with UPJO after pyeloplasty. Materials and Methods: A total of 30 consecutive patients with UPJO, who underwent unilateral pyeloplasty between 2012 and 2013 were assessed. All subjects underwent DRS and also MRU about 1-month after the former procedure. Results: The Kendall's tau correlation showed a very strong correlation between results of MRU and diuretic renal scintigraphy (r = 0.932, P < 0.001). This strong correlation was also shown by Somers'd test (r = 0.932, P < 0.001) similarly. Conclusions: Our study shows a strong agreement between DRS and MRU to assess UPJO. MRU static fluid has a high accuracy for assessment of renal system anatomy. Due to the lack of dangerous consequences of contrast materials, MRU can be the best option instead of DRS.

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