Can Intravenous Urography be Replaced by Sonography?
For the last four decades, intravenous urography (IVU) has been considered indispensable in evaluation of the urinary tract. Since the introduction of cross-sectional imaging modalities (diagnostic ultrasound [US] computed tomography [CT] and magnetic resonance imaging [MRI]), however, the role of IVU has changed (1), and the number of studies performed around the country is decreasing. Technical advances in radiology have improved diagnostic evaluation, facilitated interventional approaches for diagnosis and treatment, and refined the assessment of therapeutic results. In order to avoid duplication and efficiently achieve the best outcome with this vast array of imaging options, it is necessary to understand the advantages and limitations of each (2). This review provides a comparison of the use of IVU and US in nephrology, and discusses the optimal diagnostic choice in various clinical situations.
KeywordsIodine Tuberculosis Cyclosporin Pyramid Renin
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