Use of the Instantaneous Wave-free Ratio or Fractional Flow Reserve in PCI
Davies JE, Sen S, Dehbi HM et al.
KEYWORDS
iFR; FFR; stable angina; ACS; coronary-artery stenosis; non inferiority; MACE
BACKGROUND - Coronary revascularization guided by fractional flow reserve (FFR) is associated with better patient outcomes after the procedure than revascularization guided by angiography alone. It is unknown whether the instantaneous wave-free ratio (iFR), an alternative measure that does not require the administration of adenosine, will offer benefits similar to those of FFR.