Figure 3.

(A) Example image analysis for a healthy participant indicating segmentation of the kidneys from the T₁ map, definition of cortex and medulla masks from the histogram, and the application of the renal cortex mask to an arterial spin labeling perfusion map allowing the interrogation of a histogram [for mode and full-width-at-half-maximum (FWHM)] of renal cortex perfusion values. (B) Example image analysis for a chronic kidney disease patient indicating definition of cortex and medulla masks from the T₁ histogram of the kidneys.