Assessment of Angiography-Based Renal Quantitative Flow Ratio Measurement in Patients with Atherosclerotic Renal Artery Stenosis

Figure 2

Comparison of diagnostic performance between rQFR and QRA by ROC analyses. (a) ROC curve shows optimal rQFR cut-off value (purple dot) for predicting blood pressure improvement after PTRAS. (b) Superiority of rQFR combined with QRA (blue line) compared to rQFR (orange line) or QRA (green line) in predicting blood pressure improvement after PTRAS.

(a)

(b)