Magnetic Resonance Urography in Patients with Non-Contributory Intravenous Urography
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2017, Vol 16, Issue 3
Abstract
Magnetic Resonance Urography (MRU) is increaingly replacing Intravenous Urography (IVU) which has been the traditional modality for uro-imaging. However, the effectiveness and advantages of this new and costly modality need to be proven before defining its place in the uro-radiological armamentarium. We conducted a prospective study to assess the role of MRU in 100 consecutive cases where IVU was inconclusive or contra-indicated. As 4 patients had solitary functioning kidney, a total of 196 renal units were evaluated. In all the cases the results of IVU and MRU were cross-checked for accuracy by multi- modality imaging or surgical feedback. The Sensitivity, Specificity and the Predictive Value of a positive and negative MRU were calculated. Since the study was conducted in cases where IVU was non-contributory , MRU was evaluated as a stand-alone test. We found that with the exception of diagnosing stone disease in non-obstructed renal units, MRU is an excellent modality for evaluating the renal system. It can be successfully used to image paediatric and pregnant cases. It can rapidly demonstrate the pelvi- calyceal system even in renal units with deranged excretion. It can be used in emergency settings on unprepared patients. Its efficacy is reduced in non-dilated renal units.
Authors and Affiliations
Anu Singhal, Supreethi Kohli, Sanjeev Singhal
Keywords
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- EP ID EP593413
- DOI 10.9790/0853-1603035158
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