Skip to main content
. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: J Magn Reson Imaging. 2011 Apr;33(4):898–901. doi: 10.1002/jmri.22509

Figure 2.

Figure 2

Illustrates time course of cortical and medullary variation in R2* during water-loading in one representative animal in each of the groups A (top) and B (bottom). Note the significant decrease in medullary R2* values, approaching the cortical values in group A during water-loading. Note the absence of similar decrease in R2* in group B during water-loading. Also note the significant increase in R2* in group B prior to water-loading illustrating a decline in medullary oxygenation due to the administration of L_NAME. Time zero represents the start of water load in both groups of animals. The error bars show the standard error estimated over 3 ROIs in each, cortex and medulla.