The Resistive Index Is a Marker of Renal Function, Pathology, Prognosis, and Responsiveness to Steroid Therapy in Chronic Kidney Disease Patients

Figure 2

The resistive index (RI) based on CKD stages. An ultrasonographic image of a healthy control with CKD stage 1 (a) and of a patient with end-stage renal disease (ESRD) with CKD stage 5 (b). RI increased with CKD progression (𝑃<0.001) (c). *𝑃<0.01 versus stage 1, ^†𝑃<0.01 versus stage 2, ^§𝑃<0.01 versus stage 3.

(a)

(b)

(c)