Renal failure: diagnostic work-up |
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Authors: | Ifergan J Rocher L Hélénon O Oueslati H Bellin M-F |
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Institution: | Service d'Imagerie, Université Paris Sud, CHU Bicêtre AP-HP, 78 Avenue du Gal-Leclerc, 95275 Le Kremlin-Bicêtre, France. jonathan.ifergan@bct.aphp.fr |
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Abstract: | The purpose of this article is to review the diagnostic work-up of renal failure, acute or chronic. The role of the radiologist is to exclude the presence of a curable etiology such as urinary tract obstruction or vascular thrombosis. Renal ultrasound with Doppler imaging is the imaging modality of choice for this indication, and the use of a contrast agent is useful to evaluate renal perfusion. Non-contrast CT remains valuable for the diagnosis of some urinary tract pathologies. Finally, MRI is the most comprehensive imaging modality for the evaluation of the urinary tract, but performed as a second line modality mainly for practical reasons but also due to the non-negligible risk of nephrogenic systemic fibrosis secondary to the intravenous administration of gadolinium based contrast agent. |
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