Renal Oxygenation

The goal of this study is to investigate the effect of the anesthetic agents sevoflurane or propofol on the blood flow and oxygen delivery to the kidneys. Pediatric patients who are planned to undergo an MRI scan with generalized anesthesia will be randomized to either IV anesthesia with propofol or inhalation anesthesia with sevoflurane. Both of these anesthetic methods are commonly used for anesthesia on an everyday basis. In addition to the clinically indicated MRI, Multiparametric MRI will be performed to visualize the effect of the anesthetic agent on renal blood flow, perfusion and oxygenation.