Early effects of an x‐ray contrast medium on renal T₂*/T₂<scp>MRI</scp> as compared to short‐term hyperoxia, hypoxia and aortic occlusion in rats

Abstract

T2 * mapping corroborates data previously obtained with invasive methods and demonstrates that CM injection affects renal medullary oxygenation. CM-induced T2 * decrease in OM was small vs. hypoxia and aortic occlusion. T2 * decrease obtained for hypoxia was more pronounced than for AO. This indicates that T2 * may not accurately reflect blood oxygenation under certain conditions.