Rate Pressure Products Affect the Relationship between the Fractional Flow Reserve and Instantaneous Wave-Free Ratio

Figure 2

Bland–Altman plot comparing the FFR and iFR in the low-RPP group (a) and the high-RPP group (b). RPP, rate pressure products; iFR, instantaneous wave-free ratio; FFR, fractional flow reserve.

(a)

(b)